It was almost midnight and everyone had left the guild, except for Mirajane, that stayed until later at the Master's request to clean up the mess. Even in Fairy Tail standards the guild was quite messy today.
Mira had just finished mopping the floor, so she went down to the basement to see which drinks the bar still had and whether or not she needed to buy more in the morning. After a while she left the basement and started locking all the doors before she leaves. As she was on the infirmary hallway, locking the doors she ears sounds at the end of said hallway. Without realizing Mirajane starts to walk over to the room where the sounds were coming from, only to face a closed door. She very slowly turns the knob without making a sound and opens the door just enough so that she could see what was going on in the room. What she saw surprised her and, much against her intentions, turned her on. There she was, her younger sister, Lisanna, completely naked sucking on her boyfriend, Natsu, who was also naked and constantly letting out loud moans.
After a while, Lisanna removed her mouth from around his dick, grabbed it and started to jerk him off. Seeing this action made Mira without any control what so ever, lift her pink dress and start rubbing her pussy, through the pink lacy panties.
"It's so hard Natsu. I'm having trouble moving my hand." Lisanna said after a while. This action only made Mira think to herself. 'Has her older sister, I should help her with her problems'.
"Enjoying my sister's hand, Natsu?" Mirajane said, as she entered the room, causing the young couple to open their mouth in shock. Then very slowly, she starts walking towards the bed where the two of them were only to sit on the bedside.
"Mira-nee, what are you doing?" asked an embarrassed and ashamed Lisanna as her sister sat down besides her.
"I heard you were having trouble, so as your big sister I decided to help you out"
"But…"
"No buts sweety, okay? Trust me." Mira said interrupting her sister. "You okay with this, Natsu?" the older Strauss sibling asked the fire dragon slayer.
"I-I guess so, if Lisanna is okay with it." Natsu answered and as soon as he did Mirajane grabbed her sister's hand and started to move it up and down.
"Wow Natsu, I didn't know you were this big. Now Lisanna the trick to a good hand job is you need to keep it wet, okay? "
"O-Okay" Lisanna answered. After that Mira approached her face to the dick and let out a spit crawl out of her mouth and land on Natsu's member.
"Saw that? Now do it too" Mira told her sister, only to see her perform the same act as she did, except she after brought her hand to her mouth, licked it and put it back around Natsu's dick, moving it up and down, this time with much more ease. Mirajane said nothing, but she was proud of her sister, and as she played with his length she decided to get up, remove her dress, revealing her pink panties and bra and place herself next to Natsu's face.
"May I Lisanna?" she asked facing her sister, only to get a nod from her as answer. Once she had her sister's permission she grabbed Natsu's cheeks, pulled his face closer to her's and met his lips with her's. Mira quickly pushed her tongue inside Natsu's mouth, eager to explore it, making the young fire mage moan from pleasure. Lisanna then, placed her mouth around Natsu's member once again bobbing her head up and down, swirling her tongue along his length, making him moan even more into Mira's mouth. Mira saw what her sister was doing and before she could say anything, she felt Natsu copping her breasts, poking her nipples from time to time, which only made her moa in response, much to the slayer's delight.
"Don't forget your boobs, Lisanna." Mirajane told her sister, breaking the kiss and guiding with one hand Natsu's head to her nipples. Natsu kept caressing her boobs while he gently bit and lick her nipple making the oldest take over mage moan from satisfaction. Mean while Lisanna listened to her sister's advice and placed her boobs around Natsu's member and started moving them up and down, also making the fire mage moan in please. Whenever the tip appeared from her breasts she would lick or place a gentle kiss on it."Let me have a little fun with him too Lisanna" Mira said leaving Natsu's side and head towards his dick, trading places with her sister. This time although, Lisanna, already clouded by lust, simply sat on Natsu's face waiting for him to lick her wet pussy, while Mira was having fun with his hard member. The older sister pushed her mouth all the way until every inch of the Natsu's dick was in her mouth, deepthroating, coughing once she reached the base. Natsu had grabbed Lisanna's tights and had teased her a bit by licking the outside and breathing heavily to it but now he inserted his tongue inside her, exploring her wet walls, making her body shiver from the feeling of his skilled tongue touching her precious inner walls.
Lost in Lisanna's insides, Natsu didn't notice Mira had stopped blowing him, and only noticed something different when he felt his dick touching the outsides of Mira's pussy, her guiding him with her hand. In a quick move, Mira sat down, making Natsu's dick enter her, rubbing her wet wall as it went deeper. She started slowly jumping up and down on his dick, only leaving the head in when she went up, making her and him let out countless moans as his member touched and explored new areas each time she went back down.
"Natsu, I need more of you. Put your finger in my ass" Lisanna shouted in pure bliss, snapping the male out off his trance.
"Y-You sure about that Lisa? It will hurt?" Natsu inquired his girlfriend only to receive a loud moan from her, giving him the answer to his question. Without further due, Natsu rubbed the outsides of her ass with his index finger, before pushing it inside her ass, making her scream, both from pain and pleasure. Suddenly, Mira reached out to Lisanna and kissed her, grabbing her cheeks and making her screams disappear.
"Don't worry sweaty, I'm here to help you" Mirajane said when she broke the kiss for air, only to restart a second later, this time pushing her tongue inside her sister's mouth, earning countless moans from the young take over mage. Natsu continued to lick Lisanna's wet folds, while fingering her ass, as at the same time he continued pushing himself inside Mira, while the two females shared a kiss, rubbing each other's breasts.
"Natsu, dear, we want to try anal if you don't mid." Mira said when she broke the kiss once again for air, earning and nod from Lisanna and a grunt from Natsu who still had his tongue inside the younger sister's pussy. They positioned themselves so that the girls were now on all fours, pointing their asses to Natsu, who was supporting himself on his knees and was having trouble deciding which one to do first.
"Natsu please, do me first. I need you inside me." Lisanna shouted desperately, receiving a smile from her sister and a quick kiss on the lips.
"Bite the sheets, Lisa. It going to hurt" Natsu warned her, before entering. She did as he advice her, and as soon as she was ready, Natsu pushed his dick inside Lisanna's ass as deep as he could, making her scream very loud, although she had sheets on her mouth, and little tears appear on her eyes. "I'm going to start moving. Ready babe?" the fire mage asked, receiving a moan as an answer, which made him start moving his hip, pulling and pushing his dick out, leaving only the tip inside, making Lisanna drop the sheets from her mouth and scream as loud as she could, more because of the pleasure than the pain at this point. Natsu kept thrusting in Lisanna's ass, while Mira watched and fingered her own ass, preparing herself for what was coming. Natsu couldn't hold it any longer as his dick rubbed her insides and he soon unleashed his load inside her ass, making her arms fail, as she fell, leaving her ass pointing up, breathing heavily with her eyes close. Natsu slowly pulled his dick from inside her, and pointed it towards Mirajane.
"I thought you never came" she said to him as Natsu positioned himself behind her, and slowly pushed his dick inside of her, receiving a loud shout of pain and pleasure from the bartender. Natsu let his torso fall to Mira's back, so he could play with her breasts and nipples while thrusting into her ass. As he played with both her front and her back, Mirajane couldn't stop herself from letting out moans of pleasure as shivers over took her whole body. As her inner walls wrapped around his member, Natsu couldn't hold it much longer and, like he did with Lisanna, he cummed inside Mira's ass. He removed his dick from her ass, and by this time Lisanna was back up already and Mira and her were begging for more of his seed. They both grabbed his shoulder and laid him on his back.
"Come on Natsu, just on more load" they both said in unison, looking at his eyes, while Mira played with the tip of his dick and Lisanna caressed his balls. When they received a nod from him, both of them placed their boobs around his shaft and started to move them up and down, licking alternatively whenever the tip appeared between their breasts.
"I'm gonna cum" Natsu said as her boobs moved up and down on his dick. At hearing his plea, both of the female mages opened their mouths waiting for the load to come out. As Lisanna gave the tip on last lick, his cum started to be expelled from his member, covering their boobs and entering their mouths. Both of the girls cleaned the others breasts and once all the cum was in their mouths they swallowed it, letting their bodies fall, Natsu staying in the middle with an arm around each waits and one of each girls hands in his chest, fingers intertwined. Soon Natsu fell asleep from exhaustion and the girls look at each other.
"Hey, Mira-nee." Lisanna called her sister "Wanna share Natsu with me?" she asked, with a smile on her face.
"I would love too, sweety" Mirajane answered, and both of them, still with their fingers intertwined, lead their hands towards his dick, and leaving them there as both of them succumbed to sleep.