Dragon Slayer

Disclaimer: I don't own Fairy tail

"Speaking"

'Thoughts'

Last time

"Looks like I won" she whispered to him as he continues to support him

"Cheater" he said pointing the fact that Erza un-summoned her weapon to avoid which just caused her to laugh a little and made him smile before he passed out as all of their members came running towards them as she looks at the setting sun thinking that she might be able to get this to work.

Chapter 4: Relationships and Training

It was a sunny afternoon Natsu was on the ground with his vest was gone and his trousers ruined, breathing hard and covered in sweat looking up at Erza that has pinned and mounted him straddling him at the hips who's also in the same tired state as him.

"How long have we been doing this?" Natsu asked catching his breath.

"About 4 hrs, I'm impressed Natsu this is the fifth time and you still want to go" she said looking down at Natsu her breathing also labored though not as much sweaty as him.

"Thanks it's my first time doing this kind of stuff, its fun though very tiring" he said still catching his breath.

"Me too Natsu, today was my first time doing this I wouldn't mind doing this with somebody else but I'm glad its you" she said smiling at him which he returned in kind

"So up for another round?" she asked

"Yup I'm still fired up from the last round, I'm starting to find your weak spots Erza" he said confidently

"Is that so Natsu?" he nods "well then lets continue we don't want to miss lunch" she said as she removes her sword that's pointed at Natsu and helped him get up as they jumped back and continued they're spar.

After Natsu woke up from his rest after their duel Erza decided to train Natsu to help him become a strong wizard which he begrudgingly accepted. The first day was an awkward affair to them as Erza apparently only has one bedroom just like Lucy's apartment it was only fit for one person. Erza asked Natsu after a few nosebleeds and blushing to sleep with her though she meant it in a normal sleep with no funny business involved, though she wouldn't mind if Natsu's hormones started to go on overdrive and take advantage of her. But he just declined saying that it's her house and his just her guest and opted for the couch as she agreed though tempted to use force she wave goodnight to him and went to her room to sleep leaving her door unlocked. Just in case someone might rob her she could quickly thwart them and maybe Natsu would get the chills as she deliberately kept the windows open and decide to keep himself warm and go to her bed. She could always dream.

Next day she woke up feeling disappointed as the space in her bed was unoccupied and decided to take a shower. She didn't notice that Natsu used her bathroom and as she opened the door she bumped into Natsu wearing a towel loosely wrapped around his waist causing it to fall. As Erza wiped the sleep from her eyes she was greeted by the sight of little Natsu though he wasn't as little as she thought it to be and a little too close to her liking, with one fierce blush from the roommates. Erza immediately shot up and kicked Natsu knocking the poor Dragon slayer out. The rest of the days were very much allotted in getting used to their new living status as she slowly started to develop feelings towards the young dragon slayer and her need for him to touch and do naughty stuff with her lessen as her feelings slowly grew towards Natsu. She found herself smiling more often in the last week that they have been living together in her house though Gray, Lucy, and Happy visit every other day to check up on them giving her house some life and turning her house into a home. Everything should be all good for Erza as she was spending more time with Natsu but ever since she saw Mirajane with Natsu in the sick bay, she frowned at the memory as she dodged another attack from Natsu.

FLASHBACK

Mirajane once was a person that was never afraid to voice out her opinions of others causing other people to see her as a tomboy that always led to fights with Erza when they were kids arguing about petty things just like how Natsu and Gray acted, considered one of the strongest Fairy Tail members she gained the title of The Demon Mirajane at the same time as Erza earned her Titania during their S-class trials as they both exhibited the strength and skill required to attain the rank but even with her tough exterior that she always showed to everyone, she is a kind and passionate person always taking care of her siblings and fiercely loyal to her friends. During her childhood years she developed a close attachment towards Natsu as was Erza, though Erza cared for Natsu as a brother. She always thought of him in a romantic way though she has a weird way of showing it. She liked the young dragon slayer a lot, she loves the rosy tinge of his wild and unruly hair, his happy go lucky attitude, his drive to become strong for his friends and most of all his smile though she also liked to see him cry as she always thought that it was cute silently thanking Erza for the times she managed to make Natsu cry, it was his smile that won her over as she always felt secure and could wipe her problems away. She always kept tabs on Natsu when Erza was gone making idle chitchat or just annoying the young Dragon slayer much to her enjoyment and would always strike an argument with Erza every time she felt that she's making a move on Natsu even questioning Natsu were his loyalties lie as she felt he was choosing Erza over her though she never expressed her feelings toward Natsu. She always thought that he still needs to grow up a little; even she has a limit with Natsu's stupidity.

So she just waited until she realized that she was not the only one that the young Dragon slayer won over as she discovered her little sister Lisanna was also infatuated with Natsu though she was always shy and afraid to act on it, but the chance came when Natsu apparently found a Dragon's egg and Lisanna decided to help raise it and caused her chance to be with Natsu slowly disappears as after that incident Natsu and Lisanna's relationship grew though she doesn't know to what extent, it was obvious that her sister has already fallen for Natsu. Left with no other choice she decided to bury her feelings, support her sister, and just watch from a distance. Years went by and Lisanna has finally decided to tell her feelings for Natsu the day after they return from their quest, Causing a part of her heart to die as her chance was completely lost hoping that one day her sister would get frustrated enough and just give up on Natsu, he is very stupid when it comes to matters of the heart, then again who wasn't.. So she just smiled and supported her. After the events from the mission another part of her died as she saw her sister's death right before her very eyes the day before she would confess her love to Natsu.

Hollow

She felt empty as the rain continued to pour down from the skies as she and Elfman grieved of her death. Her sister died before she could ever confess to Natsu as she wasn't able to protect the one person she secretly entrusted Natsu's Happiness died right in front of her. Because of her weakness she was gone, she felt pitiful. The Demon Mirajane feared and respected all around Fiore wasn't strong enough to save her sister, cursing at herself for having the power but was afraid to use it when needed the most. And so she lost the will to fight along with most of her magic powers and the strong and brash Mira replaced with the mask of a mother figure for Fairy Tail. And as the days turned to weeks, weeks into months, and months to a year she became accustomed to her new mask just like her brother who decided to become strong and move forward leaving her behind as she still felt responsible for what happened and decided to just leave her feelings for Natsu buried even after Lisanna's death and continued to watch him from a distance.

Natsu was sleeping in a makeshift room covered in bandages from the various cuts he receive from his duel with Erza. Mirajane is sitting on a stool watching over his sleeping form with a sad smile upon her features.

"you scared me Natsu" as she wipes some of the dirt on his face "I thought something terrible happened to you when Erza's attack hit you, just the thought of someone I love dying in front me…" she wasn't able to continue as her bright sapphire eyes became cloudy as tears started to pool within the corners of her eyes as she remembered her sisters death and her inability to save her as she gripped her dress as tears started to fall from her eyes.

"That was quite a show of power there Erza, since when did you became that powerful?" Makarov stated with curiosity.

"I guess it was during my fight with Jose when my powers suddenly grew, though I don't know the reason why every time I used that armor, I feel like someone is always watching over me" she said as she too was wondering how she got her new armor.

"I see, this someone that you say is watching you does it seem familiar to you somehow?" he asked as he noticed that Erza doesn't seem to notice Natsu's magic emblem overlapping with hers.

"Yes master it does, though I can't place my finger on it, I have a feeling I know who this person is" she finished as she narrowed down the people that has ever made her feel safe and protected until she remembered the times she was with Natsu who would come to her aid in a drop of hat. "Natsu" she mutters under her breath as Makarov was able to hear her.

"I see, Natsu huh" Makarov said off handedly as sips from his beer as Erza nodded her head and stares at her own mug.

"Yes, even though I'm far stronger than him, somehow I always knew he was always the strongest one out of the two of us" she said as a small smile graced her features.

"is that so, but Natsu still has a lot of growing up to do, even though his getting stronger at an inhuman rate he still has a lot to learn don't you agree Erza?"Makarov asked as he glanced at Erza who was deep in thought while blushing and whispering to herself which intrigued and scared Makarov.

'Now what do I do now that I won? Sure I can order Natsu around but I already have that privilege even before the bet' she thought to herself.

"Why don't you order him to go to your house, then tie him to your bed and have your wicked way with him?"

as Erza looks to her left she saw a mini version of herself wearing a red leather bikini that's neckline that end below her belly button while sporting red pumps that reaches up to her mid thigh with red leather gloves that covers her whole arm beside the shoulders, its hair is much like hers only with two little horns that protrude just above her ear with wings on its back and a tail with a cute spade like tip and holding a pitchfork grinning at her lecherously as Erza's started to blush madly at what she herself wearing or rather the miniature her standing on the counter.

"Like what you see?" Erza could only nod as she's currently transfixed at what she's seeing. "You know now that you won, you should make the most out of it and try out all the things you've read in your books so far. It will be fun" the miniature Erza said as she wiggled her eyebrows causing a wave of naughty taught to assault her already strained mind as she pinched her nose to avoid the impending nose bleed.

"I never knew you were that flexible" the miniature Erza said off handedly causing Erza to stare at it incredulously.

"How did you know what was I thinking?" Erza asked

"I'm you silly" she said with a wink causing only one thought to enter her mind.

"Great I'm insane" she said exasperated when she felt something prick her finger and noticed the little Erza annoyed.

"You're not crazy, you idiot I'm just… a figment of your over active imagination that came to life to help you decide on what to do with your current dilemma" little Erza said in a lecturing tone.

"So now that I'm here let's start planning on how you'll bag salamander so we could keep him to ourselves"

She said while rubbing her little hands together.

"Isn't there supposed to be another one of you?" she asked hoping that there is. And just as she hoped another one puffed into existence this time wearing a white dress with wings and sword on its hip.

"Sorry I got lost, there's just too many thoughts running in your mind right now I got distracted" it said with a small blush on its face which caused the red one to grin mischievously and elbow the white one.

"So you saw that one huh, I guess our little Erza likes to role-play did you see the one were she pretends to be captured by an enemy mage then she gets sexually humiliated to submission, very kinky don't you agree? Just thinking about it gets me all Fired up" the red one said as she continues to embarrass the two as she continues on the various role-play she liked "so let's get Natsu some Beer and get him drunk enough that he'll agree to screw Erza's brains out" she said grinning as Erza seemed taken to the idea as she as just about to leave to do just that.

"No child! That's wrong you're the sister he looks up to" as the white Erza reprimands her that got her thinking that is she always that intimidating

"Bah! Don't listen to her Beer is good, it'll loosen him up…and then we can be on our merry way" the red one said

"Don't listen to that Succubus. Just take your time and if you real-"

"Chuga, chuga, chuga, chuga"

"If you really thin-"

"Humpa, lumpa, humpa, lumpa"

"DIE Harpy" as the white Erza snapped and began chasing the red one as Erza just smacked her face with her palm already questioning her sanity until she realized that Makarov staring at her with an amused smirk on his face causing her to blush as she just realized the humiliation she unwittingly put herself through but tried to act as if nothing happened which just caused her master smirk.

"Sorry Master, I didn't catch what you just" she said apologetically berating herself for spacing out as Makarov just looked at her with a curious eyebrow before he sips from his mug and repeated himself.

"I said Natsu still has a lot to learn, I guess you were too busy with your own thoughts, could you share them with me?" he asked grinning at Erza who just blush in embarrassment and shook her head repeatedly as she continues to spout words that doesn't even make sense anymore as he grinned inwardly as it was not a common thing to see the always reserved Erza babbling nonsense. It was always amusing to mess with his kids after a few seconds he stopped

"I know but who would teach him?" she said as returned to her earlier dilemma of thinking of what to do

"Why don't you teach him then, you've thought him how to read once how bad could it be?" Makarov asked as he drinks from his mug looking at Erza at the corner of his eye as her face brightens and stands up and went to Natsu as she bid her farewell the Makarov who just smiled happy that he could help.

Mirajane composed herself as she stared longingly at Natsu's sleeping face looking like he doesn't have a care in the world as she continues to play with his pink locks.

"It's been what? Two years seen the person we both cared for so much died even up to this time I still haven't move on" she stopped as she stared at him for a moment and continues to play with his pink locks "I know that you too still haven't completely moved on and I can see that you're doing you're best to move forward while I'm still stuck in the past. You know…I still love you even though it's been two years I can never stop loving you…God knows I tried but somehow I just can't" she sighs "but after seeing your fight with Erza the thought of loosing you because to the hands of a person you cared for…It will be a repeat of Lisanna and I don't want that, I know Erza won't kill you I guess I'm still traumatized even after 2 years" she said as she looked out the window.

"I guess it's time for me to move on too, Lisanna's been gone for 2 years its time for me to take my chance with you" she said as a small smile played on her lips as she leaned down and captured his lips and for the first time in two years she felt happy for herself as she savored her first kiss.

Erza was walking towards Natsu's location a smile on her usually stoic face. Happy that not only did she found a way to use her victory and also a chance to explore what would her relationship with Natsu be like. She saw that the door where Natsu is resting was open and decided to just go in and skip the pleasantries seeing that his still resting and maybe practice her kissing. She still has a lot to learn.

Jealousy

Something well known to her since she started avoiding Natsu, she gets frustrated when Natsu would give Lucy a friendly hug or even their little spats, as she started wanting the same kind of closeness Natsu shares with Lucy, that Levy even commented that the two acted like a married couple she knows that her anger toward her fellow Fairy Tail member is unwarranted as she never even had a relationship with Natsu in the first place. But the thought of Natsu with another woman other than her just felt wrong to her as her resolve to get Natsu to be her man increased even if she has to take drastic measures.

"Oh hello Erza" Mira greeted her a little bit happier than usual. Erza a little perplexed at her happier than normal and greeting but nodded all the same, as she took a chair in the corner of the room and took a seat right next to Mira as she eyed her.

"That was quite a duel Erza, I never knew that your powers increased to the level equal to Laxus" Mirajane said as she continues to play with Natsu's locks irritating the stoic knight beside her.

"I never noticed" she said calmly keeping her emotions in check "Tell me why are here Mira? Usually you're at the bar "

"I just wanted to see Natsu that's all; I thought something bad has happened to him when you used that powerful attack against him" worry clearly visible in her voice that made Erza regret going all out on Natsu but kept her stoic façade.

"He would've just fine, he's tougher than he looks" her calm reply as they sat there in silence watching over the sleeping Natsu absorbed in their own thoughts. A groan came from the bed roused them from their thoughts.

"Uh where am I?" he asked as he tried to stand up but stopped by Mirajane.

"You should rest, you took quite a beating from Erza" she said smiling that caused Natsu to smile as he noticed the change in Mirajane.

"You seem different Mira" he said as he scrunched his face in though and made Mirajane smile and Erza to frown ever so slightly.

"Oh, really I didn't notice?" she asked feigning shock.

"Yeah somehow… you seem happier, like the old Mira when we were kids" he said happily as he just noticed Erza sitting beside Mirajane "Oh you're here too Erza I didn't notice" scratching the back of his neck. If Erza was offended she didn't show it as she looked over Natsu with a stoic expression.

"Natsu I know what I'm gonna do with the bet" Erza spoke calmly as Natsu remembered why he was in the sickbay in the first place and a curious glance from Mirajane not knowing there was a bet between the two.

"Ok, what do you want me to do? I lost so I'm all yours" Natsu said confident that he can handle what ever task she has in mind. Though Erza blush at the declaration as her mind assaulted her with Naughty thoughts as a light shade of red covered her cheeks causing Mira to stare at Erza worried at the same time jealous about Erza's situation as she definitely know what she would do if she ever got the chance.

"I've decided to teach you" he raised up her hand to Natsu stop and shot a glare that promised pain in the future stopping him in his tracks as he remembered the last time she taught him he starved for a whole day and nightmares a few nights after that.

"You have great potential in you that's waiting to be unlocked… that's why I'll train you Natsu" she said calmly and Natsu nodded "But it also means that you'll be living with me… in my house" she finished as she dropped the bomb and waited for his reply just as expected he refused.

"Are you going to back on you're word?" she didn't like to use Natsu's weakness when it comes to promises but it's the only way for him to agree.

"Fine… I guess I don't have a choice… but can Happy come?" he asked hoping that he wouldn't be alone with Erza. He was still having nightmares about his last study session. Erza just shook her head sealing his fate.

"Well good luck Natsu, you'll need it" Mira said as she stood up and pat him on the shoulder as she started to leave and stopped when she reached the door. "You should come to bar sometime so we could talk"

"Sure I'd like that" he said grinning as Mira left.

Erza just passively watched their interaction and came to only one conclusion Mira is definitely after Natsu. She knew the infatuation of her former rival with Natsu when they were young as she always sees Mira talking with Natsu every time she would look for him and it didn't bother her seeing that she was never interested in Natsu romantically. But now is different, she has developed a liking towards Natsu and she won't stand by and watch as Mira tries to steal her Natsu.

"I'll pick you up tomorrow morning" she said and then left Natsu to rest

'Mira has definitely change, her smiles are more real not the ones she always wear' and that was his last thoughts before he resumed his rest.

Next morning came and just as Erza said she arrived to pick Natsu up as she came with a cart filled with Natsu's stuff as the others stunned by the news that Natsu was going to be living with Erza for an unknown amount of time as she only knew, so he along with the other members of team Natsu walked them to Erza's that happened from the last few weeks was a blur to her though she was thankful that she thought of using the excuse to train Natsu to make him live in her apartment though they had a rough start everything went fine in the end. Though Natsu has been spending his lunch at Mira's bar much to Erza's dismay, ever since Erza saw Mira with Natsu she has been actively talking to Natsu and Natsu same with her as they would talk about random topics the whole time he was at the bar. Even though Natsu doesn't notice she could easily see the way Mira looks at Natsu and the subtle gestures she does while the two are talking. So she decided to start their training a few weeks later as they were always busy with the construction of their new guild were she discovered how hard Natsu trains by himself. Always waking up with the couch empty she decided to look for the missing Dragon slayer, and after a little looking around she found Natsu in a clearing in the forest a mile from town and she watched him train. She decided that his training was crude throwing attacks left and right with no pattern or rhythm as he easily tires himself out from using excessive force. A few more seconds and she decided to join in as she re-equip a sword and threw it a Natsu's direction making sure that she would miss as the sword hit the ground.

"Hey I could've been hurt Erza" he whined as he already knew that Erza was watching him even before she threw the sword. Having a keen sense of smell has its benefits as he already became familiar with Erza's scent the smell of lavenders.

"You could have dodged it even if I threw it directly at you" she said matter-of-factly as a smile appeared from her usually stoic face as Natsu grins back and enters a fighting stance before Erza re-equip he Flame Empress armor and their spar began.

FLASHBACK END

"You're getting good Natsu" she said as blocked another flaming kick from Natsu and counters by swinging her sword upward as Natsu back flips to dodge the attack.

"I'm already good, you're the one that's slowing down" he said grinning while catching his breath. In reality his already past his limit while Erza wasn't that tired. but he still pushed on determined to show Erza how strong he has become training on his own.

As they continued on they're spar Erza can be seen smiling through out their training enjoying the time she's spending with Natsu with all the awkwardness of the last few weeks and secretly hoped that time would just stop and they could spend their time together like this enjoying each others company. Their spar continued with Erza slowly getting the advantage as Natsu slowly tires himself out. she rushed forward and slashed horizontally causing Natsu to jump back but before he could get away Erza grabbed Natsu's leg causing him to stop in midair before he landed to the ground and Erza mounts him again to prevent his escape.

"I win again Natsu… for the sixth time" she tried to mock Natsu but failed seeing that she enjoyed their spar as both suddenly found their selves staring at each other.

For the first time in his young life Natsu's hormones started kick in as he stared at the red haired goddess on top of him. He always thought of Erza as beautiful even when they were kids and he was somehow thankful that he could see the stone faced Erza smiling and enjoying herself as she seemed to radiate with beauty. Her scarlet hair that seemed to shine, her expressive brown eyes, her red lips and dare he say it a nice body to boot as his eyesight dipped lower than her face and towards Erza's sizeable chest heaving up and down as his eye sight continued to dip lower to wear Erza was straddling his hips. He blushed and stared again at the equally blushing Erza as somehow her face became dangerously close to his, her hair eclipsing the sun.

"What's wrong Natsu?" she asked in between breaths as she started to get comfortable in her spot over his hips as she unconsciously draws her face closer knowing that Natsu was checking her out causing her to blush.

"Beautiful" was all Natsu could say still entranced by the beautiful knight above him and she blushed fiercely as a playful and sultry looked took over her features she slowly came forward. Natsu suddenly realizing his position became beet red as Erza's face slowly moved forward as he became stock still expecting Erza to become his supposedly first kiss and closed his eyes as he waits for what it seemed like an eternity.

"Pervert" was all he heard as Erza tries to stand up and accidentally rubbing their nether regions causing him to groan and Erza to moan and stop. Blushing madly her face obscured by her hair, she quickly got off and offered a hand to Natsu which he shakily accepts. Both are stunned at what happened and just remained standing not looking at each other both deep in thought on what just happened.

'What was that?' he thought furiously as he remembered that strange but wonderful feeling when Erza accidentally rubbed his crotch. Just thinking of it made him blush and dirty thoughts started to assault his mind. Like any normal guy Natsu has already experimented with some adult stuff as he was curious to why their master is a pervert. So he looked into some magazines that their master was hiding and saw quite a lot of naked women and men doing stuff. The only thing that ran through his 15 yr. old brain was "GROSS" as he quickly burned all of the magazines and quickly forgot it thankful for having a short attention span. And now he is mourning the fact that he looked at those magazines as his mind won't stop showing him visions of him and Erza doing half of what the things he saw from the magazines as little Natsu started to stand in attention adding to his frustrations.

'Damn it, my body is acting up again' Erza's was frustrated yet again as her need to do naughty stuff with Natsu came back with a vengeance from their little accident as her mind was filled with the same thoughts that was running over her head a few weeks ago. Though the need for Natsu lessened it didn't disappear as she did relieve some of her tension by masturbating while she takes her bath. Her view point of Natsu as a brother slowly changes throughout their time spent together as she could easily see him as a lover. 'At least Mirajane's not here'

"Hey Natsu" Mira shouts breaking the uncomfortable silence as he waved at Mira and ran past Erza as he smelled the lunch that Mira made for him.

"Speak of the devil" Erza muttered under her breath as she followed Natsu.

AN: sorry for the delay I've been busy with a lot of stuff lately leaving little to no time to write this. So here is another chapter of my fic though I think I focused on Mirajane too much. I'm already writing the next chapter which will feature more Erza and Natsu as the next chapter will deviate a little from the canon. So tell me what you think. Reviews always appreciated.

Ja ne