Her sisterly duty
Disclaimer: I don't own Fairy Tail or any of the things affiliated with it.
Pairing: Natsu x Mirajane
Summary: Sisters always help sisters, no matter the situation. So when Mira noticed that Lisanna couldn't keep up with the resident Fire Dragon Slayer in bed, she decided to pick up the slack and perform her sisterly duty. (Idea by Kowaba)
It was Fairy Tail's beach day, but considering that Magnolia didn't have a beach and leaving the guild unguarded wasn't the smartest idea with all things considered. So the guild decided to spend their beach day at the guild's pool. No one was really fussed about this. The women didn't really mind, and most of the guys were honestly just happy to see some of Fiore's finest women in swimsuits. Though most of the men were just ogling their scantily clad guildmates, some of them were actually enjoying the pool.
One of these was Natsu Dragneel, who in his girlfriend's opinion was enjoying the pool a little too much. Lisanna was desperately trying to calm him down, but failing horribly at it. "Come on Natsu, at least try to keep some of the water in the pool." Lisanna told her pink haired boyfriend. Her words fell on seemingly deaf ears as the pinkette continued to be his usual self. The youngest Strauss just sighed and gave up on her energetic lover. She honestly didn't mind her lover's energetic nature, in fact, she loved that about him. However, she knew that he'd eventually splash water on a certain redhead and a very violent beating would ensue. The woman just sighed and continued to wait outside of the pool for this eventuality.
Luckily for her, she didn't have to wait by herself as Mirajane took a seat next to her. "So why is my sweet little sister not enjoying the pool with her boyfriend?" Mirajane asked, looking at her younger sister. The model had been eyeing her sister while she had been serving drinks, and she hadn't seen her remove the hoodie let alone swim. "Don't tell me you bought an extra skimpy swimsuit and you're embarrassed." The older sister joked, hoping to cheer the woman up a little.
"It's not that, I'm just not feeling very well." Lisanna replied with a smile. Just from her expression and how she sounded, Mirajane instantly knew that the woman was lying to her. She curious, and she instantly wanted to get to the bottom of it.
"Oh really? You and Natsu seemed to be rather energetic this morning." Mirajane questioned with a coy smile. Lisanna's face instantly exploded in a blush. She wasn't sure what was worse, getting caught out for lying or her sex life being exposed. This reaction brought a big smile to the older woman's face and she started pressing her sister for the truth. "Come on, you know you can't lie to your big sister, so what's the real reason." She reminded. The short-haired woman looked as if she still didn't want to budge.
"It's really nothing Nee-chan, I just don't feel like swimming." Lisanna lied, looking away from her oldest sibling. The woman didn't take kindly to her sisters lies but pretended to believe it for the moment. It turned out that Mirajane was a much better liar than her sister since the younger Strauss was convinced she had dropped the issue. 'Finally.' Lisanna sighed before she reached over Mirajane to get a drink. However, when she did this, her hoodie rode up a little and revealed her bandaged midsection and this didn't go unnoticed by her sister.
Worried, Mirajane stood up, grabbed her sister, and lead her somewhere a lot more private. At first, the teen was confused, but after taking a glimpse at the concerted expression on the woman's face, it became very clear that she'd been found out. Once they reached their private location, Mirajane started to speak. "Take it off." Mirajane almost demanded. Seeing as she had already been caught, Lisanna complied right away. She started by removing her hoddie, showing her bandaged midsection. "What's he been doing to you?" Mirajane demanded, her fury coming through in her tone. Lisanna looked away before she realized it was pointless trying to lie to the demon of Fairy Tail.
"You know how Natsu and I have started... You know." Lisanna started as she tried to fight the blush dominating her face. Despite how flustered the woman was, Mirajane understood what she was trying to say. The two teens had been dating for a while at this point and they had only upgraded to a sexual one in the recent months. "It's been amazing, but he's impossible to handle... In bed." She managed to get out. It was a little hard for her to admit that she wasn't able to keep up with the Dragon Slayer in bed, but she knew that she'd worry her sister to death if she didn't.
The demon let out a small sigh and a slightly guilty look appeared on her face. 'Oh Mavis, this is my fault.' Mirajane sighed looking away from her sister. After thinking about for a few seconds, she looked back at her sister and reexamined her sister's injuries. This time, it became very obvious that they were all sex-related and they were all things that she had taught the Dragon Slayer. Her neck was littered with hickeys and bite marks while slap marks decorated her backside. "Don't worry Lisanna, your big sister will find a way to take care of this while you get better... I'll give Natsu a good talking to." She promised, bringing a smile to her sister's face.
...
It was much later on in the day and the guild's pool was completely empty. With the exception of Natsu, everyone had returned to the main area of the guild. The fire Dragon Slayer would also be among them if it hadn't been for the beatdown he had suffered at Erza's hands. Just as his girlfriend had predicted, he ended up slashing the knight with an absurd amount of water. However, no one expected that he'd do it while she had her cake in one hand and her favourite book in the other. It was one of the most brutal ones the guild had ever seen and Natsu had never been so glad to have Wendy around. Despite the aid of the Sky Dragon Slayer, he still needed to take a very long rest to recover which meant he was now alone in the changing room. Lisanna had offered to stay by his side, but the pinkette told the white-haired woman to go enjoy herself.
"Damn Erza, who the hell does she think she is? It was a little water." Natsu groaned as he got dressed. Even though an experience like the one he just had would have traumatized a normal person, it only made the pinkette want to get stronger. However, the thought of toning himself down was the last thing on his mind. "Well, at least I have Lisanna to look forward to." He told himself with a massive smile. Thoughts of his childhood friend turned girlfriend always brought a smile to the pinkette's face.
He didn't get to just enjoy thoughts of his girlfriend for very long when he heard the sound of the door opening and footsteps. Thanks to his heightened scenes, he figured out that they were female and he would have assumed that Erza was there to finish him off. However, he was lucky since he picked up on the smell of lavender. "Ah, it's just Mira... Wait, what's Mira doing in the guy's changeroom?" The Dragon Slayer wondered out loud.
"Natsu?" Mirajane called out. The pinkette replied, giving the woman his location. He still wasn't sure why she wanted to know where he was, but he assumed it must have been important if she entering the men's changing room. "There you are, I was worried that might have pissed Erza off again." She said as found herself to the pinkette.
"Doesn't matter, I could take her on if she tries something again." Natsu declared, getting a giggle from the model. She couldn't tell if the beating had given Natsu some major brain damage or if he was just that confident. The woman found it cute either way. "So what are you doing here? I'm pretty sure you're not supposed to be in here." The pinkette questioned. It was clear that Natsu didn't mind her presence due to the fact that his sense of boundaries was almost none-existant. Plus he did get to enjoy the sight of the woman in a teal string bikini. It wasn't the one she was wearing earlier, but he did recognize it from her 'fight' with Jenny a year ago.
"Well, I really needed to talk to you in private earlier, but Erza got to you first." Mirajane explained with a smile. The pinkette didn't really react to being reminded of the beating and just looked ready to listen. "I had a talk with Lisanna earlier today, and I found out that you guys are having a little trouble in paradise." She commented.
"What do you mean by that?" Natsu questioned, making the oldest Strauss let out a sigh. She sometimes forgot how dim the pinkette could be, and realized that he was unaware of any problems with her sister. Knowing this, she decided that she would have to be blunt with the pinkette.
"I'll get back to that later,. So how are things going between you and Lisanna." Mirajane asked. Natsu was a little confused by this line of questioning, but he was more than happy to answer the woman.
"It's been going great, Lisanna is great and we finally started doing it." Natsu exclaimed, he sounded especially happy about the last part. This only confirmed her suspicions. The pinkette wasn't trying to hurt his lover, she felt a bit idiotic for thinking the Dragon Slayer would ever do that. Mirajane was going to start assuming her sister was just hiding her pain from the pinkette until he started talking again. "The sex is great, but I think I'm being too rough with her... She says it's fine and to do whatever what." He admitted, sounding rather guilty near the end. "I try to be gentle sometimes, but she's just so damn hot that I can't hold back."
Mirajane sighed as she realised that this wasn't a problem that the young couple would be able to deal with by themselves. Natsu clearly felt bad about harming his lover, but he didn't have enough self-control. It was made even worse by the fact that Lisanna was a too eager to please and enable her boyfriend. "Natsu, I think I can help with your little problem." Mirajane replied as she moved closer to the pinkette. Natsu was completely caught off guard by this and instinctively started moving back. He soon found himself with his back to the wall. This didn't deter Mirajane who just close the gap between the two. "What's with that reaction Natsu? I'm offering to help with this problem." She questioned, cupping the side of the man's face.
Natsu's face developed a small blush as did the face of Mirajane and she started to move closer. The pinkette's heart started to beat even faster as the demon of Fairy Tail bridged the gap and instigated a heated kiss. It was far from their first kiss together, but it had certainly been a long time for the both of them. With this being the case both of them got a little lost in the sensation. The Dragon Slayer only snapped out of it when he felt a hand rub against his crotch. He realised what he was doing and pushed the model away from him. "What are you doing? I'm with Lisanna." Natsu reminded, looking away from the beauty. Mirajane just smiled and moved up to the man again.
"I told you, I'm going to help you with your problem... She's my sister and it's my fault that you're like this way." Mirajane claimed, but the pinkette didn't seem like he was going to go with it. The former demon was happy to see that the man was a loyal man, but it didn't mean she was going to give up. From what she knew about the situation, this was the only effective course of action. "Lisanna doesn't want you to stop and I know you can't... I'll slow you down so you don't hurt her." She explained.
"No... I'll just have to try harder to hold back for her." Natsu claimed, looking down at the shorter woman. Though his eyes were full of resolve, Mirajane clearly didn't care and just started running her hands over her former lover's body. "Mira..." He groaned when he felt the older woman's dainty hand grab his manhood.
"Tell me Natsu, do you really think you can hold back when you're with Lisanna? What about that cute face of hers? That tight butt that she's been working on or those big bouncy boobs of her? Can you honestly tell me that you don't want to ravage every last inch of her?" Mirajane taunted, feeling Natsu's manhood harden with each of her words. She knew that Natsu would attempt to better himself, but she also knew that his instincts would always be too much for him. "You can try to lie to me, but this part will always be honest... So let me help."
Natsu still didn't look ready to commit, but he was clearly more open to the idea just judging from his expression. "Say I said yes, what would stop me from doing the same to you?" Natsu questioned, now unable to look at the beauty. He honestly didn't want to cheat on Lisanna, he loved her more than anything else. However, things couldn't continue the way they were.
"Oh Natsu, you know that I can handle it... But I have few conditions." Mirajane explained with a smile. She was glad that she was finally getting through to the man and he even seemed ready to listen to her conditions. "Firstly, you must never tell anyone, especially Lisanna. Secondly, we will always use protection and lastly, you will always come to me when you want any sort of sexual relief." The woman explained before hugging the man. She could hear the man's heart beating at an almost worrying pace and it brought a smile to her face. "If you follow these conditions, you can use me whenever and wherever you want." She finished, pulling back from the embrace and looking up at the man.
Unfortunately, rather than glee, he had an expression of guilt. "That sounds good, but it's still cheating... I can't do that to her." Natsu replied. He'd be lying if he said that the offer didn't sound amazing, but the thought of cheating of Lisanna made him feel horrible. Mirajane found herself torn between admiration for Natsu's loyalty and pissed off at his refusal to accept the offer. Unfortunately that the latter emotion took over the take-over mage. The locker room was suddenly filled with an immense amount of magic. "What's wrong Mira?" He questioned before a magic-infused fist smashed into the locker next to his head. Not only did she destroy the one she punched, she destroyed every single one behind it.
She could understand why he was so hesitant, but it didn't make it any less annoying for the woman. She had her own reservations about doing this, but she was willing cast them aside for her precious little sister. "I'm giving you two options, take my offer or you stop being physical with Lisanna... And trust me if you try to get around the second option, I will make what Erza does to you seem like a few light taps." Mirajane threatened. Luckily, this turned out to be enough to finally sway the man. All resistance seemed to drain from the man's face.
However, she could never be too sure with the Dragon Slayer, so she cupped both sides of his face and readied him for a kiss. "If you accept this kiss it will seal our little deal. I hope you understand that." She clarified. The pinkette didn't answer and Mirajane leaned into the kiss, where she found no resistance. It was much shorter than the first one, but it was enough for the white-haired woman and it instigated a much more heated one between the two.
Natsu's hand instantly found itself resting on the model's big doughy ass. As a reflex, Mirajane wrapped her legs around the man's waist and clung to him tightly. It became very clear to the former demon why Lisanna couldn't handle the man. He had the furiosity and hunger of a starved beast as he absolutely dominated their kiss at the start. However, Mirajane wasn't going to give up easily and started really fighting back against the amourous pinkette. Their tounges became locked in a battle for dominance as the couple reached the nearest wall. As their battle continued, the two couldn't take their eyes off each other and both became even more aggressive. Natsu started with a strong squeeze to the woman's ass and Mirajane retaliated by digging her nails deep into the man's back. 'So that's how you wanna play it.' Natsu thought as his instincts kicked it.
The sudden act of aggression gave Natsu a rush like no other. If it was anyone else, it would have been enough for him to take control of the kiss, but Mirajane something else. She was a demon and she kept up with the Dragon Slayer and continued to work her special brand of magic. Much as her former lover had the blue-eyed woman became completely lost in lust and an unrelenting hunger for dominance. 'It's been a while, but don't get cocky little Dragon.' Mirajane teased as their battle for dominance continued, even though she was stuck between Natsu and the rough wall.
The two eventually separated from their kiss when their need for air finally beat out their arousal. Both looked at each other's breathless face and both of them looked like they wanted more. "Looks like you haven't lost your touch." Natsu commented, still feeling the sharp pain from the woman's nails. The woman giggled at this as she removed her hair-tie, undoing her front poney tail. Natsu felt rather nostalgic as he stared at Mirajane in this state. Mirajane saw this expression and decided to remind the man of their situation.
"Don't look at me like that, we're not like that anymore... Just remember that." Mirajane reminded the pinkette as she looked away. The woman prepared for a response from the pinkette but she instead received a pair of sharp canines to her neck, which resulted in a small moan escaping her mouth. The woman was happy that Natsu's priorities were still in check, but she was annoyed that she had just lost the battle for dominance. With this being the case, Mirajane decided to enjoy the pleasurable pain. "Fuck, you haven't lost your touch either." She moaned. Though she regretted teaching the pinkette to fuck this way because of the rift it created between Natsu and Lisanna, but she absolutely loved it. She loved it so much that she had to keep reminding herself who she was doing this for. "Put me down Natsu, I want to get started... Make sure to treat me the same way you treat Lisanna." She requested.
The kissing, biting, scratching and squeezing had worked up both the Fairy Tail mages. Natsu put the woman down only so he could rip off the beauty's top and free her ample bosom. He didn't give the blue-eyed beauty much time to react since he burnt off her bikini bottom seconds later, leaving her completely bare. "I forgot how hot you were." Natsu said, taking a moment to admire the woman. Mirajane leered at him for ruining one of her favourite swimsuits and retaliated by shredding his pants, leaving him naked as well. "And I forgot how feisty you could be." He added, looking down at the shredded clothing. Seeing that the pinkette was distracted, Mirajane took full advantage of this.
The whited haired demon tripped him over and pushed Natsu down onto his back before mounting him. She was tempted to start riding the man straight away, but she wanted to play around a little bit. It felt like an eternity since their last encounter, and she needed to examine how the pinkette's bedroom behaviours. She slowly got off the man, slowly sliding back until she was facing his manhood. The oldest Strauss licked her lips at the sight of thick man meat. It had grown since the last time she'd seen it and it aroused her to no end. "Let's see if this demon can still swallow the Dragon." Mirajane teased, with a lustful grin.
Natsu felt a small shiver run down his spine when he felt Mirajane's soft full lips press against the tip of his member. This was more than enough for to awaken something in the younger man. As he sat up, the pinkette grabbed a hold of the woman's long white locks before jamming every last inch of his manhood into the blue-eyed beauty. "Looks like you still can." Natsu commented with a smirk on his face. Mirajane prepared to give him a glare, but the Dragon Slayer never really gave her a chance. The feeling of the woman's tight moist throat wrapping around his member made him want to do nothing more than give her a good face fucking. As he started, the pink haired man got to his feet and forced the white-haired to her knees.
The raw power and suddenness of Natsu's actions meant that the woman just had to take it. Oddly enough, she loved the rough treatment she was getting from the dark-eyed man. It was made even better thanks to the look Natsu was giving her as he ravaged her face. There were the odd moments of discomfort whenever Natsu would get a little too deep, but that only added to the experience. 'He's even wilder than before... Poor Lisanna.' Mirajane thought as found herself completely at the pinkette's mercy. The fact that her sister had dealt with this as long as she had was a true testament to her love and dedication for the man. However, the pinkette's savagery made it very clear that what she was doing was truly important. Mirajane was sure this kind of treatment left Lisanna teary-eyed and gagging. With this thought in mind, the white-haired woman decided it was time to step up her game and started putting the pinkette in his place.
The demon of Fairy Tail knew full well that taming the Dragon in his current state would be a very difficult task. However, she would quickly prove that this was not impossible, and Natsu's experience was made all the better for it. "Fuck, I forgot how good you were at this." Natsu moaned. Every time he pulled the woman's head back, she'd attempt to suck him dry. This managed to slow the pink haired man down a considerable amount as he found himself completely taken aback by the amazing feeling of the beauty's tight throat and talented tongue. He'd never say it, but the older Strauss was much better than her little sister. Due to this, Natsu continued to slow down just as the woman had hoped. 'How the hell does she do this?' He pondered as he started to slowly become more docile.
Natsu used to wonder if the woman used some sort of magic in the bedroom, going as far as to straight up ask her, but she'd completely denied it. However, she usually giggled after it and always left the dull pinkette confused. With Natsu's mind somewhere else, Mirajane took her chance to take full advantage of it. Before long, she had completely worn her former lover down. Natsu's grasp on her hair had loosened and he'd completely stopped thrusting, leaving Mirajane with all the control. The Dragon Slayer didn't even mind this since the older mage was just too good. Mirajane knew this well and her confidence started to beam as she continued to work her magic. 'Dear Mavis, taming the Dragon has gotten way harder, I can't hold back.' Mirajane told herself, pulling back and exposing the fire mage's saliva covered cock to the cool air.
The pinkette was ready to question why the woman had stopped, but he was shut up when he felt the guild's best pair of tits wrap around his manhood. They were a perfect size, firmness and softness for the Dragon Slayer. Natsu let out a small uncharacteristic moan at the assault on his cock. He couldn't tell what felt better, but he was stuck between the feeling of Mirajane's perfect breasts massaging his mast and the way her tongue managed to find assault his weak spots. "Mira." Natsu managed to get out. Mirajane's confidence continued to build with this but it didn't mean that she started slacking, no, she bolstered her efforts. Just to drive home that she was in control was how she refused to break eye contact with the fire mage.
'Looks like these babies are still as unbeatable.' A very confident Mirajane told herself. It had taken her much longer than she had expected, but she'd finally conquered the Dragon Slayer. It was made all the better when as she watched Natsu's face melt with pleasure as she attempted to suck the younger man dry. As she did so, her sisterly duty was toppled by her own desire. It had been a while since she had let her hair down and seeing the pinkette's expression brought out something out of the platinum-haired woman. The locker room became full of the Dragon Slayer's moans, which he so desperately tried to hide from the beauty. His efforts proved to be completely useless as the beauty teased or sucked on every single one of his weak spots. "Looks like that big strong Dragon Slayer is gone, now you're that little cutie I used to pick on." She teased before swallowing the man's head again.
Natsu attempted to retort, but the woman just increased her efforts the second she saw the man's mouth open. The sound he made was a crushing blow to his pride, but the pleasure made it impossible for him to take that in. "Damn it Mira." Natsu managed to get out when he finally realized he was at the woman's mercy. However, the demon mage had proved that she showed the same level of mercy in the bedroom as she did on the battlefield. Things carried on like this for a while, with the woman sucking him off and only taking breaks to tease the pinkette. Natsu was stuck between enjoying the pleasure and trying to get back his shattered pride. Unfortunately for Mirajane's little plan, the pinkette was a much more persistent than she had expected. "I ain't losing to you." He groaned as went to grab the woman's long white locks.
Mirajane smiled at this but didn't try to stop him, choosing to see just how much more fight the pinkette had in him. The older woman had expected the man to get close, but she certainly didn't expect the pinkette to just pick up where he had left off. Mirajane's eyes went wide with shock when she felt a thick cock force its way all the way down her throat unsuspecting throat. Within moments of this, Natsu was going wild and his grip was even harder than it was before. She wasn't sure where he got all this energy and power from, but it did remind her never to underestimate the pinkette. She also realized that she wouldn't be able to dominate the pink haired man as she had hoped, it was clear that she'd now have to tire the man out as much as possible. 'Ok Mira, just don't let yourself get carried away again.' Mirajane told herself. The woman reminded herself of her duty but this didn't stop her from enjoying the rough treatment.
The concept of time became lost on the model as the pinkette continued to face fuck her. She somehow managed to maintain eye contact with the pinkette which only made the pinkette even more worked up. It wasn't long before the pinkette was on the edge of a climax and both parties knew that it was going to be a very big one. "Fuck, here it is." Natsu groaned, thrusting his entire manhood as deep as he could. Mirajane tensed up at this before her insides were flooded with a surplus of thick Dragon Slayer cum. This turned out to be a little too much for the unprepared woman, who instinctively moved back, resulting in the coughing woman getting cum splattered on her face and breasts. "Amazing." The pink haired man muttered with a smile on his face.
Natsu felt his shattered pride repaired as he admired the sight of the cum covered babe. The Dragon Slayer's manhood returned to full mast as he continued to admire the woman and he started wanting even more. Mirajane could see this and decided that she'd entertain the man a little bit. She started slowly cleaning herself up and making it a sexy as possible, which wasn't too hard for someone like Mirajane. Unsurprisingly, the look of want and desire was stronger than ever before. By the time she was done, Natsu expression was reminiscent of a starving animal finding the juiciest piece of meat on Earthland. "Natsu, are you ready to start?" Mirajane questioned as she started to get up. She didn't bother trying to fix herself up, she very much doubted that Natsu would suddenly become a gentle lover.
"Yeah, I hope you're ready for this." Natsu said with a lustful grin. The Dragon Slayer and the Demon of Fairy Tail inspected the locker room for a few moments before silently agreeing to use the bench. Knowing what the pinkette wanted, the woman laid on her back before spreading her legs and presenting her wanting maidenhood to the pink haired man. "Looks like you are." He stated as he stared at the perfect pink pussy. It looked just as he remembered it and the feelings of lust clouded his judgment that he almost forgot about one vital part of his deal with the demon. "Do you have any protection?" He questioned.
The demoness smiled. "I was beginning to think you forgot, don't worry I've got some." Mirajane told the pinkette as she re-quipped a few small boxes of condoms, which she threw at the man. Natsu caught them but was rather surprised by the preparedness of the beauty. "Put one on and let's get started, we've got a long afternoon ahead of us." The woman told the man, who happily complied. He pressed his manhood against the sopping maidenhood of his lover's sister before slamming his entire length in one fluid action. To say that the woman was unprepared for this would have been a massive understatement and the loud moan she let out was a testament to that.
"Amazing." Natsu muttered as he took in the feeling of Mirajane's maidenhood. The oldest Strauss was able to take a whole lot more of his manhood than her younger sister could. The pinkette gave the older woman a few seconds to collect herself. As he allowed the woman to regain some of her composure he decided to have some fun with her. He gripped her left hip and used his free hand to grab one of the beauty's perfectly formed breasts. "I kinda missed these things." He claimed as he started fondling the woman. The Dragon Slayer wasn't content with this, leaning in and capturing the unattended to the breast in his mouth. He started playing with the woman's sensitive pink nippled, garnering small moans from the woman.
At first, Mirajane allowed the man to do as he pleased. However, once she realized that she was getting carried away, the beauty knew she had to get things back on track. The S-class mage decided it was best to take the most direct route. "Stop playing around and just fuck me already." Mirajane instructed. Natsu drew back, leaving the woman's breasts alone before plunging his manhood back into the former demon of Fairy Tail. After this, the pinkette held nothing back. On instinct, the woman wrapped her legs around Natsu's hips and her arms around his back, leaving them in a very intimate and face to face full-body embrace. "That's it, don't hold back." She continued, digging her nails into the man's back.
"I never do." Natsu replied with another lustful grin.
...
Hours had passed since the Dragon Slayer and the Take-over mage had started their tryst. They had somehow gone uninterrupted despite the amount of noise they had created throughout the entire experience. Mirajane and Natsu were now resting the backs against one of the walls lockers. "Dear me, it looks like we've run out." Mirajane told the man as she tipped the last of the boxes upside down. The oldest Strauss then looked around the locker room, used condoms littered the room and the smell of sex still filled the room. Considering the time they had taken and the intensity they were going at it, it came as no surprise that they had used every single one of them. She knew that they'd be a lot of cleaning up, but she didn't want to think about too much, and looked back at Natsu. When she looked back at the man, she let out a small sigh. "But it doesn't look like you're done yet." She sighed.
The white-haired waitress was willing to use her mouth and hand to hopefully finish him off. However, the pinkette spoke up before she could make the suggestion. "I know what it looks like, but I'm super tired and, I want to see Lisanna... Just to spend time with her." Natsu admitted, sounding a little guilty. Sex with Mirajane had been truly amazing for the young man, but he couldn't help feeling terrible about cheating on his girlfriend. The fact that he'd done it with her sister didn't help either.
"Just remember our deal Natsu, and we wouldn't be doing this if you had any self-control." Mirajane reminded as she showed off some marks she'd received from the younger man. She couldn't imagine just how her little sister hand handled her boyfriend if they were as active as she assumed. This made the fire mage's guilty expression worsen.
"Don't blame yourself too much, you're only this way because of me." She added, which didn't do much apart from making herself feel worse. The relationship she had with the Dragon Slayer was by no means a healthy one. Rather then any real romantic feelings, their's was one that had come about as means to distract themselves from their shared grief and then to simply satisfy their feelings of lust. There had once been a chance that their relationship could have blossomed into a romantic one, but any hopes of that were snuffed out when Lisanna made her return. "We should probably get going, Lisanna will start to worry." The woman said, snapping out of her own thoughts.
Natsu nodded as he got up. He still didn't look too pleased, which was understandable. Despite this, the Dragon Slayer offered his hand for the beauty. "So what are you gonna do? I kinda burnt your bikini." Natsu asked, getting a small giggle from the woman.
"I was only wearing that to get you worked up, I've got spare clothes... You didn't think that I was just going to strut around the streets in a bikini, even I'm not that confident." Mirajane told the pinkette as she accepted the man's hand. After such a longer and pleasurable exchange with the slightly younger man, she found it a little harder to stand properly. Fortunately for her, Natsu was able to keep her up. "Thank you Natsu, I think you're going to have to help me home." She instructed.
...
A week had passed since the pinkette made and started his deal with the demoness. Since then, there hadn't been a day that they hadn't been intimate with one another. The woman's plan had worked, Mirajane hadn't seen so much as a bruise on Lisanna since she put her plan into play. However, that deal was currently the last thing on the Dragon Slayer's mind since he was spending time with his lovely girlfriend. The guild was mostly empty, so it was no surprise that the man had used this chance to show his short-haired lover some affection.
He had sat Lisanna on his lap and he was having his fun. "Natsu~ people will start staring at us." Lisanna moaned as her lover gently nibbled her neck. Ever since Mirajane had decided to have a little chat with the pinkette, things had been even better. Their issues in the bedroom had disappeared and Natsu had become even more affectionate towards her. Lisanna wasn't sure what her sister had done to bring about this change, but she decided not to question Mirajane's methods. "You've got no shame, what am I supposed to do with you." She teased.
"You could just let me keep going, cause I know you love it." Natsu teased back, with his hands finding the woman's tight rear end. It wasn't as ample as her sister's, but the shape and firmness of it made it one of the most squeezable things on Earthland. "If you're embarrassed, I bet we can find somewhere a little more private." He suggested, getting a blush from his girlfriend.
"I just came back from a job, I really need to clean myself up." Lisanna replied, making her boyfriend pout. She knew that the fire mage wanted her, and he wanted her bad, it'd been the case the entire day. The enthusiasm was almost enough to make the youngest Strauss give in, sneak into the storage room and let her boyfriend just go to town on her. However, a day of hard work made her feel a lot less desirable despite Natsu's actions. She was tempted use the guild's showers, but she was pretty sure she'd find herself pressed against the shower wall with her Dragon Slaying boyfriend going to town on her.
Natsu didn't seem too discouraged by this, in fact, this gave the man a pretty good idea. "How about you head home, take a nice long bath, put on something really nice, and then... I bet you can guess what I'll do to you after that." Natsu whispered, giving the woman ass another strong hard squeeze. The lust coming from her boyfriend was palpable and she couldn't help going in for a kiss. Natsu smiled and accepted the soft lips of his girlfriend. He hated comparing the sisters, but in terms of kissing, Lisanna won by a long shot. While a kiss with Mirajane did the job of working him up, that's about all they did. Kisses with Lisanna were something else, even the shortest kiss could light fire under the man and make him experience an unparalleled feeling of love. He tended to get lost in his kisses with Lisanna, and this was no different. By the time they were done, the guild was empty with the exception of Mirajane.
"It looks like time really does fly when you're having fun, I'm going to head out... Don't keep me waiting too long, and thanks for helping Mira-nee out." Lisanna said, getting off her lover. Natsu felt a pang of guilt at the trust in the woman's voice and the happy expression on Lisanna's face. Part of Natsu wanted to break down and tell her about the affair, but he knew it would only break the younger woman's heart and he'd get the worst beating of his life. "Love you Natsu... Just give me a few hours to prepare." The blushing woman said as she started heading home. Once the woman left, Natsu was left alone with the take-over mage and thoughts started flooding the man's mind.
He tried to get them out of his head, but as if he was on auto-pilot, he got up and started heading towards the waitress. Though he couldn't see her, he could smell the alluring scent of lavender and this led him to the guild's storage room. As he moved towards the storage room, he couldn't stop himself from feeling horrible. 'I can't keep doing this to Lisanna.' Natsu told himself before entering the storage room. However, the sight he was confronted with made those repentant thoughts leave his mind completely.
Mirajane was bent over with her dress hiked up, he wasn't sure why this was the case nor did he care. He wasn't sure she had done this on purpose or not, and he once again found himself not caring. Natsu was enthralled by the sight of her big heart shaped ass which was only covered by a pair of black lacy panties. He was pretty sure that she was taking inventory considering since her top half was in the closet.
The Dragon Slayer cursed whatever god putting such enticing woman on the planet. Every time she'd flirt or bring him in for sex, his love and loyalty for Lisanna were replaced by a lust for Mirajane. He hated that this was the case, but it didn't mean he could stop himself. Knowing this, he began moving towards the woman with a great deal of stealth. "I swear that if I find out that Cana took it again, I'm going to FUCK!" Mirajane exclaimed as Natsu entered her. In one swift movement, the pinkette had moved her panties to the side and entered her. Alone with the sudden jolt of pleasure, Mirajane now found herself forced into the cupboard she was investigating.
"Remeber, you said that I can fuck you anytime and anywhere." Natsu reminded the woman. He then forced himself a little deeper into the woman's tight and surprisingly wet pussy. He wasn't sure what the woman had been doing, but it was obvious that she was doing something other than just doing her job. "Looks like you were prepared, and don't even try to hide it... This nose doesn't miss anything." He teased, but Mirajane didn't seem too pleased.
"Well, at least one of us has to be properly prepared, you're supposed to be wearing protection." Mirajane reminded before pushing the man back, forcing Natsu out of her. She then turned around and shot the man an angry glare. The beauty didn't know what she'd do to the man.
"Come on Mira, what's wrong with going raw once in a while?" Natsu asked, with a pout. Mirajane was honestly surprised that her sister hadn't gotten pregnant yet. While it was probably fine for the young couple, she really didn't want to take that risk. Not only would she have to deal with being pregnant, the arrival of a pink haired child would be a truly impossible task. Sure, she wanted to see little pink and white-haired kids running around, but she didn't want to be a mother just yet. Despite this, she knew she couldn't leave Natsu as he was or it'd spell trouble for Natsu's relationship with Lisanna. Considering that he'd spent the afternoon flirting with Lisanna, he was probably the most worked up he'd been since they had started this agreement. The woman let out a small sigh when realised what she had to do.
"Natsu, I'm only going to let you do this today, but don't cum inside no matter what." Mirajane proposed, getting an excited smile from the Dragon Slayer. She then remembered the reason why she was in the backroom in the first place. "I still need to take inventory, so you're going to need to work around that." She told the man, not even trying to hide her lust at this point.
"So how'd you want to do this?" Natsu asked the woman. He wanted to get back to Lisanna sooner rather than later and give her the fucking she was pretty much begging for earlier. Instead of answering him with words, the beauty stripped down to nothing and returned to checking inventory. It took the man a little bit of thinking, but this was the take-over mage's way of saying he could do whatever he wanted. Unsurprisingly, Natsu was a huge fan of this approach and decided that he'd have a little bit of fun before the main course. As the woman bent over once again to check the bottom shelf, the Dragon Slayer got behind her and slid his manhood between the booty of the woman. "Nice and soft." He muttered as he felt his manhood being snuggled by Mirajane's cheeks.
Natsu started thrusting his manhood into the woman's doughy cheeks with a great deal of enthusiasm. He wasn't sure how the woman was taking this since she was too busy trying to concentrate. She'd be damned if she let Cana get away with stealing alcohol. The white-haired woman was happy that the man had started off with a bit of self-gratification. Checking the stock was a lot easier when she didn't have the Dragon Slayer's cock plugging her pussy. "Let's see... it looks like there's still plenty of your favourite Natsu." Mirajane pointed out before she tensed her cheeks closer.
"Good to know." Natsu grunted as his thrusts got even more vigorous. He couldn't tell what he was loving more, the woman's large pale ass or the feeling of his stiff manhood being squeezed by it. "You know, it's Lisanna's favourite now as well." He added, sounding rather proud. Mirajane rolled her eyes and started backing up her ass into the man to meet the man's movements.
The take-over mage couldn't help feeling rather proud when she heard the man let out a couple of moans. Even though it was sister's boyfriend, the beauty couldn't help feeling proud of how easily she was taming the Dragon Slayer. The only real downside to letting the man entertain himself in this manner was that it got her rather worked up. A healthy blush now decorated her face and her leaky maidenhood was in dire need of something to fill it. Luckily for her pride, her ass was enough to distract the man from all of this and she maintained the illusion of power. "If it's Lisanna's favourite as well, I think I'll give you one on the house." Mirajane told the pinkette.
"Really?" A slightly surprised Natsu asked. Even when they were more frequent partners, he'd never gotten free stuff. He wasn't going to complain though and took the bottle that was handed to him. "I'm gonna have to make it up to you, aren't I?" He suggested as a few ideas popped into his head. Mirajane didn't answer the man, preferring to just work her ass a little more.
Mirajane continued to expertly multitask, taking stock and pleasing the man behind her. She couldn't take all the credit for it since the pinkette was actually cooperating with her. She'd half expected the man to just force her against a wall and just fuck her senseless. Part of her did hope that he did go down this route since a burning desire began to build up. If Nasu wasn't already close to a climax, the white-haired woman would have been a tough spot. Since she did have the upper hand and she'd finished her task, she saw it as the perfect chance to fun with the Dragon Slayer. "Are you going to cum already? Does my butt feel that good?" Mirajane teased, looking back with a smile.
Natsu shivered a little when he saw the expression on Mirajane's face. The lustful and playful way she looked at him was something else. He struggled to maintain his concentration as the barmaid continued to send him just the sexiest of looks. Mirajane decided to tease the man just a little more before tensing her ass. The pinkette really had no chance at this point as the woman's cheeks were just too much for him. "Fuck." Natsu cursed as he bucked his hips and came.
The woman cooed as her sister's lover came hard, spraying hot Dragon Slayer cum all over her buns, back and even in her hair. "Looks like I was a little too good... It's a good thing that I finished, but now I need a shower and you're welcome to join in." Mirajane giggled. The pinkette seemed on board with the idea and started moving making her way out of the storage closet and towards the guild's showers with the pink haired man following closely behind. She only got to the bar before she found herself being forcibly bent over and the very familiar feeling of Natsu's cock suddenly entering her. She didn't even protest the sudden invader since it just felt that good.
She was fully expecting Natsu to just start pounding her from behind, but the dragon Slayer once again challenged her expectations. The pink haired man turned her around before propping her up on a bar stool. Mirajane blushed when she saw the expression on Natsu's face. It told her that she was going to get fucked, and fucked hard. "You Strauss girls just drive me crazy." Natsu told the beauty, placing on his hands on her hips and the other on her breast. The demoness smiled at the statement, pretty much goading the man to just go wild. He was more than happy to oblige, and he started going hard and fast since he knew Mirajane didn't need to get any more worked up.
The sounds of passion started to echo the closed guild hall as the Dragon Slayer started giving it to the most sought-after woman in the kingdom. The guild became filled with the sound of moans and grunts as the two guildmates continued their indecent affair. The fact that this was indeed an affair became lost on Natsu the second he slipped into the woman's slick maidenhood.
The same could be said for Mirajane when her tight cunt was stretched open by the thick piece of meat Natsu called a cock. "That's the spot, keep going." Mirajane pleaded as she got the gratification her body had been aching for the entire day. She wanted to feel bad for doing this to her sister, but her remorse was no match for her lust. Despite the wild and seemingly senseless way the pinkette moved, the oldest Strauss knew better. Each movement was deliberate, reaching and assault certain sweet sports. Sure she could handle the rough way Natsu made love, but the pleasure was something else. Her body had long since found itself a slave to the pinkette's cock.
Natsu wasn't fairing any better. Mirajane had the body of a succubus and her moans were comparable to that of a siren. He truly loved every part of Lisanna, but the short-haired woman was the furthest thing from his mind when he was fucking Mirajane. Everything about Mirajane drove him crazy. From the lewd expressions she made whenever he hit the right spot, to the hypnotic way her breasts bounced in time with his movements. The lust he felt for everyone's favourite barmaid was on its own level and that came through in the way he fucked her. "Strauss pussy is the fucking best." Natsu grunted.
...
They didn't know just how much time passed since Natsu went from using the stool to using the bar, nor did they care. Both mages only cared about their impending climaxes. Mirajane was so lost in the heat of the moment that she made a very risky request. "That's right Natsu, fill this pussy with your cum you sexy fucker." Mirajane cursed, forcing the man closer to bury his entire length into her maidenhood. The woman's already tight cavern closed around the man as she came, and forced one a climax from the man. "Right there." She moaned out as her maidenhood was flooded for the first time in a very long time.
"I forgot how great it was to cum in you." Natsu muttered as he continued to dump his load into the woman. The two were so lost in each other that the weight of their actions was completely lost. Even as they found themselves breathless, all they could think about was how and where they were going to fuck next. "Let's get to the showers." He said, grabbing the woman's hand. Despite being a little weak in the legs, Mirajane happily followed the beauty until they got to the table Natsu and Lisanna normally sat. Instead of actually letting the man take her to the showers, the white-haired woman forced the man down onto the man. "Oh, you want to take control now?" He questioned.
"Yeah, and let's see if you can handle me." Mirajane teased as she mounted the pink haired man. The two were no longer just lost in their lust, they were drowning in it. The cum stuffed woman didn't waste a second and impaled herself on the manhood. Mirajane threw her head back in pleasure as she was filled with the man's cock and Natsu's face was covered in a blush as he took in the amazing sight.
...
"Right there Natsu, keep going!" Mirajane screamed as she was pressed up against the shower wall with the Dragon Slayer fucking her brains out. The two had finally made their way to the guild's shower. It had taken them quite a while since the second they simply could get their hands off each other. Both had cum more times than they could count and their romp had left them both in desperate need of a shower. Before they had gotten into the shower, Mirajane looked as if she'd been on the receiving end of a very aggressive gangbang, and Natsu looked like he'd sprinted a day-long marathon. "Fill me up more."
"Yeah, scream for it Mira." Natsu retorted as continued to have his way with the woman. This latest experience had confirmed that Mirajane looked great in every position. It also confirmed that he had little to no self-control. He had completely lost track of how many times he had cum inside the demon of Fairy Tail. This, among a lot of things, was something he had completely lost track of. "You better be ready Mira, he comes another one." He warned as he strengthened his grip on the woman's hips and forced himself into need as possible.
Despite already being completely full, Mirajane's maidenhood happily accepted everything Natsu offered. The demoness's pussy tensed up as she came and relaxed as it was filled with the substance that being yearning for. With this done, the pink haired man pulled out before catching the woman who's legs almost gave out. Natsu also looked rather tried, and it made the oldest Strauss realise that it was time to wrap things up. "Remember Natsu, that was a one time only thing." Mirajane reminded as she found her bearings.
"Yeah, we should probably clean up, we're gonna get found out otherwise, but we better make it quick, Lisanna is probably almost ready by now." Natsu pointed out, with excitement still present in his voice. Mirajane was confident she had done enough to wear the pinkette down.
...
It was now the morning after what Natsu could only describe as the most pleasurable night of his life. Mirajane had really put him to the test during their romp in the guild. He was honestly a little worried that he'd be too tried for Lisanna. However, all those worries were washed away when he actually saw the youngest Strauss. The sight made the pinkette feel as if he had been reborn and his night continued as a result. Seeing had such an eventful night, it was no real surprise that Natsu was enjoying a much-needed rest.
While Natsu enjoyed a nap in his girlfriend's bed, the Strauss sisters enjoyed some time together. "Sorry about last night, you know how Natsu can get... But he's just so amazing." Lisanna giggled as she took a sip of her coffee. The happy expression on her face and the messy state of her hair made it was very obvious what young take-over mage had spent her night doing. Mirajane smiled as she was reminded why she had made the deal with Natsu. She hadn't seen her sister this happy since she announced that Natsu finally asked her out.
"Oh it's quite fine Lisanna, today was my day off so I didn't need much sleep... Just be glad that Elfman moved with Evergreen already." Mirajane giggled back. The model wasn't exactly looking her best. It turns out taking a pounding from an extra excited Dragon Slayer and then getting no sleep can really take a heavy toll on a person. "So, I'm guessing all your little problems are gone now?" She questioned.
"Pretty much, until last night I was starting to think he was losing interest in me." Lisanna admitted, causing her sister to feel a pang of guilt.
"What makes you say that? It certainly looks like he still can't get his hands off you." Mirajane asked, genuinely curious. She hadn't asked the couple how things were going. She'd yet to ask Natsu since what time alone they got was mostly sex and a feeling of guilt would always creep up on her whenever she tried to talk Lisanna about her relationship.
"Well it's not like he's not touching me, but he hadn't been as feisty as usual until last night... I think whatever was bothering him should be gone now." Lisanna confessed.
"Well that's good to hear, but it looks like you want to ask me something else." Mirajane said, noticing the look her sister was giving her. It was obvious she wanted to ask something, and she could tell the question had been weighing on the woman's mind. The S-class mage decided to maintain a friendly demeanour as she braced for the worst.
"Well, it's about you and Natsu." Lisanna began, causing Mirajane to almost lose her composure. Even though she knew this would eventually happen, Mirajane had never quite prepared herself. She didn't know if she'd throw Natsu under the bus in order to save her relationship with her sister, take the blame for it and hope the two lovers would reconcile or even try to justify the affair. All those possibilities spun around in her mind while she tried to maintain her calm and collected face. This was made all the harder considering Lisanna wasn't looking at her, which only made her feel even guiltier. "He told me that you two used to... You know, but he never told me why you stopped, would you mind tell me why?" She requested, almost making her older sister breath a sigh of relief. This still wasn't an easy question to answer, but it was so much better than the alternative.
"I won't give you all the details, but to put it simply, I knew he'd never love me the same way he loved you." Mirajane admitted, looking down at her own cup of coffee.
"How did you know for sure?" Lisanna asked.
"It was around the time you came back. Back when we were still together, he called out your name instead of mine." Mirajane replied with a sad look on her face. Having never heard about this before, the younger sister went to apologise but was stopped before she could utter the words. "No, it's fine... I was upset at first, but it let us both realise where his heart really belonged." She explained with a sad smile. The beauty then noticed the look her sister was now giving her. "Don't feel guilty about that, I'm just glad to see you both so happy and I'll do my best to support you two."
"Thank you Nee-san, I really appreciate it." Lisanna smiled at her sister.
"Anything for you Lisanna, it's what a big sister is for." Mirajane replied.
~Epilogue~
Two years flew by flash. As one would expect, a few things had changed over this time. The biggest and probably the most shocking change was the addition of another Strauss into the world. This really wouldn't have been a shock if it had been one of the younger siblings, but Mirajane was a completely different story. Thanks to some rather helpful magic, the fact that the demon of Fairy tail was pregnant was a secret from everyone besides Natsu and her siblings. Many rumours did circulate about who the father was, but it's nothing could ever be confirmed since the child took after her mother and who was very tight-lipped.
Another big change was the engagement of the Lisanna and Natsu. Unlike the birth of little Maria Strauss, this came as no surprise to anyone. In fact, today was the couple's wedding day. "Everyone out, I need to talk to the groom." Mirajane commanded as she entered the room. The men in the room didn't really want to incur the wrath of Mirajane so they left the second they were told to.
Most expected her to completely mellow down after the birth of her daughter, but she'd become even scarier because of it. As everyone made their leave, the white-haired mother started casting a spell on the door, which got her an odd look from Natsu. "You can never be too safe with all the eavesdroppers and people who forget knock before entering a room." The mother of one told the man.
"I guess that makes sense, so why are you here exactly? Not that it's not good to see you." Natsu greeted before looking away from the stunning woman. One thing that hadn't changed in the two years was the relationship between Natsu and Mirajane. The two didn't get carried away as much as they used to, but their lust hadn't really died down, hence the daughter they now had together.
"I just wanted to see how you were feeling, mainly about tonight." Mirajane asked, with a slightly coy grin. Becoming a mother had done wonders for the model and make her look even more irresistible. Unfortunately for the men of Fiore, there was only one who'd actually get to enjoy the improved body of the beauty.
"I'm really excited, but that you probably already knew that." Natsu replied as he moved to his longtime lover. Their relationship wasn't as secret as it once was, with Mirajane admitting to and taking responsibility for the affair a few days before Maria's birth. Lisanna was admittedly angry at the betrayal, nearly breaking off the engagement because of it, but once she set eyes on the little white haired girl, the youngest Strauss found it in her to forgive them. The short-haired woman also came to realise that prosperous nature of her relationship with Natsu was somewhat reliant on the affair. "So why are you really here, I thought you'd be with Lisanna or Maria."
"Well, Lisanna actually sent me over, she showed me what she's planning on wearing tonight, and she wants to make sure that you'll be able to get through the wedding without sneaking off and fucking her silly." Mirajane explained as she approached the man. The pink haired man silently thanked his soon to be wife as the lustful MILF approached him. He wasn't sure why the woman becoming a mother made her so much sexier, but it was obvious his member didn't care. Mirajane continued to approach the man and closed the gap between the two, allowing her to feel a familiar hardness. "My my, it's your wedding day, and you're hard for your fiance's pregnant sister." She teased as she dropped to her knees.
"Wait what was that last part, are you sure you can do this?" Natsu asked, completely taken aback.
"I'm just joking Natsu, but it's not like I couldn't give you a blowjob if I was pregnant." Mirajane replied as she started undoing the man's belt. The pinkette chose not to deny the woman and let her do whatever she wanted. "By the way, Lisannna said we have to start using protection again." She added with a smile.
"Wait, Mira, are you actually pregnant?" A slightly panicked man asked. Mirajane smiled before she went to perform her sisterly duty.
The End
That's it for this one-shot. I hoped you enjoyed this and if you did, leave a REVIEW and tell me what you thought. Also, don't expect much Erza and Mirajane for a while. Sorry for pretty much only staring those two, but they are my favourite girls in the series.
You guys don't have to worry about variety though, cause thanks to your reviews and PMs, I've got a tonne of ideas. The girls I'm looking at right now are as follow: Cana, Ultear, Ur, Levy, Jenny, Minerva, Virgo, Yukino, Meredy and Hisui. I want to write something Kagura, but the problem is I don't have an idea that doesn't include Erza.
Thanks for reading as always, and since I uploaded twice this week, I'm going to use this as another opportunity to plug Kowaba's story 'Erza's book', which is so god damn close to getting the favs and follows it needs for a continuation. So do me a favour and support that one story.
That's it from me for now, see you next time.
Beta read by Earth Dragon Arnighte