A/N: I came up with this idea after that Bart and Hugo episode from Horror House of The Simpsons popped up on my YouTube feed, and as far as I'm aware it's not medically inaccurated, I spent over two days doing research on it to make sure and be certain, if IT IS inaccurated, well, I never said I was a doctor :v XD

If you know which episode I'm talking about then you definitely know how the biological twin concept will go here, if not, well, you are in for one unusual fic

Jasper was adopted as a human.

He knew this for the single fact that it was hard to miss when he had been the black sheep among his Viking of a family.

Golden brown hair and such scrawny frame among red heads who were the size of mountains… he had stood out like a sore thumb.

But he never felt out of place.

While he never managed to find out where did he come from, he hadn't cared much, his family had been like a wonderful blessing in his life, such kindness and love, as if he were genuinely related to them, he hadn't cared to learn about nor find his biological family, because, why care about or look for people who hadn't wanted him?

People who had abandoned him by the trash as if he were nothing but that? Trash.

Little did he know his long lost forgotten questions would be answered decades later.

And that the truth would be much more complex than he could have ever expected.

~

Jasper liked Emmett, he's his brother, his friend, and his partner in crime, he can be smart same as he can be an absolute idiot.

It was an interesting contrast not many people seemed capable of figuring out.

Point is, he likes his brother, but sometimes, he can't help but wish he could just wrangle his neck and call it a day.

Like now, he had been having one of his alone times where he would take advantage of the rain outside and the silence in the house to just curl in bed with his favorite book and not leave the room for the entire day.

Alice respected this habit of his, thus, she would usually leave him be, or just cuddle with him, in absolute silence.

Emmett though, he could never catch a clue, or maybe he just didn't care, Jasper was pretty sure it was the latter.

And so of course when he refused to go hunting with him, because it was raining, and he didn't felt like fighting in the mud, not today, Emmett had barged into the room and managed to catch him off guard enough to overpower him.

All the while he was still in his pajamas, because vampires might not sleep, but God forbid Alice didn't got everyone pajamas to wear at night.

Point was, he was in his pajamas, tucked like a fucking burrito in the blanket because Emmett had snatched him with blanket and all before he could so much as attempt to run.

And he was carrying him down the stairs on his shoulder as if he were a bag or some damn corpse.

His arms were restrained inside the blanket, quilt was more like it , point is, it was making the whole thing even more unnerving. But since it was Emmett, and there was literally no one but the Cullens around, he tried to not let the panic rise nor the overwhelming urge to rip the quilt apart to free himself win.

He wasn't in danger, and Alice liked this quilt, a lot, he couldn't damage it, he couldn't see how she liked it though, it had been a hideous failure from when he first tried to learn how to knit from Esme several years ago. It had a lot of yellow, blue and red, mismatched patterns and way too many loose loops.

He had wanted to burn it when he realized how terrible the thing looked, but Alice had taken it from him and claimed it as her own. How could she like something so hideous when she was so obsessed with fashion was beyond him.

Still, he couldn't break it.

Because she liked it.

And if he broke it she would be sad, he didn't want to be the reason for her to be sad.

-You step out of that door with that quilt and trust me when I tell you you're gonna have to start looking for wigs.- Alice warned from her spot on the couch, not bothering to look up from her magazine.

-You would shave my beautiful hair for an ugly quilt?- Emmett gasped, feigning betrayal as he touched his chest for more dramatic effect, Alice gave him a look.

-Hey! It might be ugly, but it's my ugly quilt.- She told him as a statement of fact, leaving no room for argument, this before turning back to her magazine.- And put my husband down, he's not dressed appropriately, I won't have him running around in pajamas in the middle of the rain.

Emmett scoffed, but he still did as told, dropping Jasper on the ground without much hesitation, Jasper glared up at him and without missing a beat he fred one arm, snatching Emmett's ankle and yanking him, hard, prompting this one to crash on the floor with a surprised yelp.

-The floor boys, I just fixed it not even a week ago.- Esme reminded them, not looking up from where she was knitting a purple beanie, how many times would she have to warn them against playing rough in the house? Houses weren't made to withstand a vampire's strength, nor any brute interaction with their bodies in general.

Emmett once broke a wall when he tripped and slammed face first on it. All because he thought smart to walk blindfolded around the house to prove a point about his amazing sense of direction.

Point is, houses and rough vampires didn't mix, but again, that's what happened when you had two teenagers who liked playing rough.

She didn't really mind per se, she could never get tired of seeing how far Jasper had come from how withdrawn he used to be, but if she didn't scold them they might think they could get away with anything, the last thing she needed was Jasper and Emmett getting into an wrestling match inside the house and bringing the house down with them in the act.

-Forgive me ma'am.- Jasper apologized, wiggling around the quilt with an annoyed look, Esme bit back a smirk as she watched him struggle to free himself from the quilt without damaging it.

-Need help there?- Emmett questioned, snickering at the glare Jasper gave him.

-'m just fine, thank you.- Jasper glowered, feeling his muscles relax when he finally found a way out of the damn quilt, he felt much more at ease once he was standing and unrestrained.

It didn't last him long though, because soon shock hit him, surprise, horror, sympathy.

It sliced through his skin like an uncomfortable weighted blanket.

-Holy shit.- Emmett's exclamation got him turning around to face him, wondering what was his problem, that until he realized something.

Shirt.

He wasn't wearing any shirt.

Just the pajama bottoms, right, the shirt from these pajamas had been torn to pieces months ago, but because he liked the little mariachi tacos' patterns in the pants Alice had let him keep them.

Point is, he isn't wearing any shirt, and that's not something he's ever done infront of the Cullens, because he's never grown comfortable enough around them to even consider the idea of exposing so much skin let alone be shirtless.

Because if the scars on his forearms, face and neck were enough to put people on edge he didn't want to know what would happen were he to expose the actual extent of it all.

But he had also done it to keep Esme from seeing them. She always got so upset whenever she focused on his scars for too long, always so sad, always so angry, he didn't like to be the reason for her to feel like that.

And still, he couldn't for the life of him move when Esme stood up, she looked beyond horrified, heartbroken.

He didn't move, not even when she was infront of him.

Meanwhile, Esme… she felt both horrified and heartbroken, because God… she knew Jasper had scars, his neck, forearms, jawline and left eyebrow left it very clear, but this…

His chest and torso were covered in scars that went from light bites to full on ravenous bites that looked as if someone had torn skin apart and it never healed quite right. He even had other kind of scars that were, without a doubt, from his human life, was that a gunshot scar by his right shoulder? And what was it with that giant scar across his stomach? Who would be so twisted to do that to another person?

Were she human, tears would have been running down her cheeks as she took on each scar. The idea of how much pain he must have been in. There was nothing more painful than the venom left behind from a vampire's bite.

To see that amount of scars…

She felt a light touch on her arm at the same time a blanket of warmth settled upon her, and it took her a moment to realize Jasper was touching her arm, concern written all over his face.

-Don't be sad, 'm alright, none of 'em hurt anymore.- Jasper said, hoping to assure Esme, he could never understand how could someone feel so much for other people, be so emotional for others… and still, it was one of the many things that had made him grow so relaxed around her.

Because she carried her emotions on her sleeve, she was easy to read, easy to get along with, she was… just too kind.

Her hand rested on his abdomen, right on top of the biggest scar on his body, there was such sorrow in her emotions, anger, grief. It didn't took him much to know the why of her emotions.

-I've always had it, you don't need to worry 'bout it, no one's cut me open.- He said, having the feeling that that's exactly what she was thinking, that someone must have cut him open, which wasn't true, probably, sort of? He had no idea what was the deal with that scar, and he had long ago given up on finding answers, even more so considering that the only people who might have known its origin were long dead.

-That one looks like the one Rose's got.- Emmett said as he got a good look of that particular scar across his brother's torso, it looked exactly like Rose's scar, just that hers did reach her chest and wasn't as straight as his, but they were the same, which couldn't be possible, right? He knew where Rosalie's came from, she had had a twin.

As in, a conjoined twin, her mother had told her about him when Rosalie turned 10 and had asked about the scar, the separation had been successful, his name had been Alexander, he was kidnapped not even a week after the separation, by the maid who was suppose to watch over them.

She had also tried to kidnap Rosalie, had had the guts to go back the next night, but another maid had found her before she could, no one ever managed to make her confess what had she done with the boy nor where was he.

Rosalie's father had contracted people to comb the entirety of New York, searching for any baby with the surgery wound, but he was never found.

At the end, it had been concluded that the maid might have killed him and gotten rid of the body, Emmett found it sick, that someone could make something so messed up, kidnap and kill a baby.

All because the maid had been resentful towards the couple, for just being rich and of extremely good status.

Rosalie had told him her parents had considered part of the family, and that it had destroyed them to find out she had been the one to kidnap and kill their baby.

Point was, Rosalie had had a twin.

Had Jasper also had a conjoined twin? But weren't those surgeries in the 1800's quite dangerous? Rosalie had survived because of a miracle.

Meanwhile, Esme frowned at his words, she knew about Rosalie's scar, her daughter had no qualms about wearing whatever swimsuits she desired when they went swimming, she was quite confident about her body.

She also knew the origin of said scar.

A twin.

Looked from up close Jasper's scar did look similar to Rosalie's, shorter, but quite similar.

-Rosalie's got somethin' like this too?- Jasper questioned curiously, understandable, he usually refused to go swimming, he would just stay in the house, and Alice would stay with him.

-What have I got?- Came Rosalie's voice as she climbed down the stairs with a book at hand.

-That big ass scar.- Emmett said.

Rosalie gave her husband a look, this before she switched her attention to Jasper, shirtless Jasper, she had to do a double take on that, that was something she never saw coming.

-See? It looks just like yours.- Emmett said as he pointed at the scar across Jasper's stomach.

Rosale frowned at the sight, she hadn't expected him to have so many scars, nor for him to have such a freakishly similar scar to the one she had.

-Rosalie's got one too?- Alice questioned in confusion. Why would Rosalie have the same scar as Jasper? In what universe could such coincidence exist? A scar like that wasn't something people just had out of coincidence, right?

-Mine reaches my chest, they are not the same.- Rosalie felt the need to refute, yeah, they were the same, but she refused to acknowledge such freaky fact, why the hell would their scars look alike? Unless… had he also had a twin? But weren't conjoined twins a rare occurrence?

For what she knew, finding someone willing to separate conjoined twins in the 1800's had been near impossible, let alone for the babies to survive the surgery or even for more than a few days after the surgery.

It just wasn't possible.

Meanwhile, Carlisle who had been quiet all along couldn't keep himself from leaving his spot on the couch in hopes to get a closer look of Jasper's scar. Something about that scar felt awfully familiar.

-May I?- His request got him a funny look, but Jasper still nodded, letting Carlisle inspect the scar, he had thousands of scars, more than Carlisle ever thought possible, bites, gunshots, stab wounds, even shrapnel.

But the one he was interested in the most was the biggest one. It was surgical, he could very much see it, sloppy, but great considering he was from the 1800's.

It went from his sternum down to somewhere on his lower abdomen.

-You said you have always had it?- Carlisle questioned, remembering Jasper's words to Esme.

-Yeah, though 'm not sure where is it from.- Jasper felt the need to add in case Carlisle was curious to know what it was from.

That caught Carlisle's attention.

-You don't know?

-No, but considerin' how moody my parents got whenever I asked 'bout it 'm pretty sure it might have had to do with my biological parents.- At Carlisle's look Jasper clarified.- I was adopted.

Carlisle frowned at that as he looked back down at the scar. He knew this scar, but from where?

He looked back at Rosalie.

He knew she had a similar scar, though hers did reach her chest unlike Jasper's, and he knew where it came from, he was there, he was literally the one who did it.

But that scar...

He looked back at Jasper's…

Surgical scars so similar and so invasive… he doesn't remember how he got it and his adoptive parents would get in a bad mood when asked about it…

Carlisle frowned as that feeling in his gut became almost unbearable to deal with.

1844.

Same invasive surgical scars.

His parents refusing to speak about the scar's origins.

Blond.

Same glares.

Same face shapes.

Same scowls.

Same smirks.

Same eyebrows.

There were too many coincidences.

And Carlisle was transported back to a memory he had long buried.

"Carlisle was finishing packing when he heard the knock at his door, the frantic heartbeat and loud breathing making him walk quickly towards the door, as he opened it he was met with Mr. Watterson. He looked pale and out of breath.

"-Dr. Cullen, I know you are leaving tonight, but I believe your help is required, do you know Mrs. Hale?"- Of course he knew who she was, she was the woman with the lively twins, he had checked on her a few times, she was just about ecstatic with the pregnancy, she prayed everyday for his words to be right about the baby being babies instead.

Worry seized him at Mr. Watterson's words though, had something happened? The twins shouldn't be arriving until another few weeks.

"-What happened? Is she alright?"

"-She's gone into labour sir, but the midwives have sent me to look for you, apparently, the baby won't come out, and Mrs. Hale's life along with the baby's might be put at risk if it continues."

That was enough to get Carlisle moving.

Little had he known what he would come across.

He had ended up having to do a C-section on Mrs. Hale to save her and the babies.

That's when he had realized what had kept the babies from being born the natural way.

Conjoined twins.

Carlisle had never come across such a rare case, but he had read enough about them to know how extremely unique the Hale twins were, a boy and a girl, something never seen before.

The boy had been smaller, but oh how strong were those lungs, he could scream for hours on end, the girl had been much more quiet, that one could sleep for hours.

He had spent hours checking both babies to make sure they were okay, they didn't share a heart, so that had been good, they had had their own two little legs and their own two little arms, their lungs hadn't been compromised either.

Mr. and Mrs. Hale had taken on the decision to separate them, the latter being less enthusiastic about said choice, Mr. Hale had even said that if it came to it, that they should save the baby with more possibilities to survive.

Carlisle had found himself staying, waiting a bit until the babies were stronger before having to subject them to such invasive and dangerous surgery.

Carlisle would never admit it, but the two weeks he had spent around the twins had made him fall completely in love with them, they were so adorable, strong, and just so lively, it was impossible to not get attached.

The girl would refuse to let his finger go whenever she got hold of it, and the boy would scream his lungs out whenever Carlisle put them back on their crib after holding them for a few seconds whenever he had to move them and was left with no choice but to hold them.

Mr. and Mrs. Hale had refused to name the babies until they were sure they would survive, but Carlisle had secretly nicknamed them, at least to have something to call them by, the girl was Little Rose, because she was as beautiful as a bouquet of roses, and the boy was Little Soldier, because he would always look so serious, and he was a fighter, so much smaller and weaker than his sister but refusing to give up, growing stronger every day.

The surgery had been delicated, stressing, and awfully slow, but both babies had made it through, Little Soldier had lost too much blood during the surgery, Carlisle had almost lost him, but he was a fighter, he had made it through, and Carlisle had been certain he would get better.

Carlisle had left not short after the surgery, Mr. and Mrs. Hale had looked happy and thankful.

It wasn't until Carlisle went back three years later, unable to forget about the miraculous twins, that he had realized how he should have listened to his gut that day and stayed.

He was only able to see Little Rose, with her beautiful blonde hair and her striking violet eyes, a giant blue bow on her head, playing in the garden.

By herself.

Carlisle had watched the house for a few days, but he never saw the boy, and when he had dared to approach Little Rose and asked her about her brother she had given him a funny look, that before telling him that her baby sibling wasn't born yet, how did he knew it was gonna be a brother?

That's when Carlisle had realized.

Little Soldier had died.

For a long time he had blamed himself over Little Soldier's death, if he had stayed he might have been able to help with any complications the baby might have presented, or had he made a mistake? It had been the first time he had made such a surgery, had he missed something? Had he done something wrong?

He had visited Little Rose every single year without fault, just watching her from afar, just to make sure she was safe, that was the only thing he could do, make sure she was safe, he wouldn't fail her like he had failed her brother, with time he had found out her name; Rosalie Lillian Hale .

And then he found her that horrible night.

The night he decided to become selfish and curse a girl he had grown to love as if she were his own, but he had been unable to just watch her die, much less in such horrible way.

He refused to let her die, she wouldn't die like her brother had done . Not as long as he lived.

And so he had cursed her to an eternal life.

She had resented him for a long time, avoiding him but not actively leaving the house, she only got worse when he brought Edward home, always yelling when spoken to, always insulting, always throwing stuff around, it wasn't until Esme came along that she began growing much more calm.

The first time she held a conversation with him without screaming at him or regarding him with hatred… it had felt like for the first time in a long time he could breathe, because she didn't hate him anymore.

He had hated himself for turning her, had even entertained the idea of putting end to her life regardless of his own feelings against it, because it was clear he hadn't fixed a thing, he had just made it worse, she was terrified, angry and completely miserable.

Turning her might have not been a good idea.

But he could never bring himself to do so, because he had been too attached to her, he couldn't take her life, much less when he was the one who cursed her to a second life.

And when Esme came and put some light in her eyes… Carlisle had been glad he never got the courage to kill her.

-Carlisle?- Esme's sudden voice brought him back to the present. The entire room was giving him concerned looks.

-You alright? You look pale, even for a vampire.- Emmett said, half joking half worried.

Carlisle didn't answer as he looked back at Jasper, as if he were seeing him for the first time.

Could it be possible? Could such coincidence exist? Was fate that miraculous? That was like one in a million chances.

But it would explain the similar scars and how awfully alike Jasper and Rosalie looked, from the moment Carlisle had seen him he had wondered how could two people who were not related by any means look so alike. Even make the same gestures.

Plus, there was the fact that he now knew Little Soldier, Alexander, hadn't died, he had heard Rosalie said it once, her twin had been kidnapped as a baby, thought dead.

But Jasper's never given indication of having had a bad relationship with his human parents, in fact, his occasional comments led to believe he had had a nice life.

And the maid who had kidnapped Alexander Hale hadn't had the Whitlock surname, it had been Miller. So what was he missing? Was it just some coincidence?

But he knew where Rosalie's scar came from, if Jasper's was the same it meant he had also been a conjoined twin. In 1844. He was adopted. And he looked a lot like Rosalie, a boy.

But what were the chances that they would be the same? That they would end up both as vampires and reuniting back with Carlisle? It didn't matter how he looked at it such coincidences didn't exist.

A sudden reminder came back to him.

Alexander had had a small birthmark on his left thigh, shaped like a disproportionated star, same birthmark he knew Rosalie had on the exact same spot.

But it wasn't as if he could ask Jasper to show him his leg so he could see if he had it, that was in a much too compromising spot for a 19 year old.

Alice.

He would need to speak with Alice.

She would know if he had the birthmark.

If he did…

God, the sole idea of Jasper being that little boy that had haunted him for so long…

Jasper gave him a quizzical look, no doubt confused with the turmoil in Carlisle's emotions. He forced himself to calm down. He needed to be calm. He needed to investigate first before he was hoping for something that might not be real.

He needed to find the truth about Jasper's background as a human before he decided to ask Alice something that might get her asking questions. If Jasper wasn't him, then fine, that wouldn't rise too many questions.

But if it was him… Alice might want to know how did he knew about the birthmark, and if she mentioned it to Rosalie who also had the birthmark…

He might end up being forced to tell her the truth much sooner, he needed to thread carefully with this.

Because he feared what his involvement with Rosalie as a human might do.

It could destroy his relationship with his daughter, because what if she thought him to have manipulated her? What if she thought he let her suffer just so he could turn her? He dreaded to even think about what her finding out about his selfishness might do.

Because at the end that's what he had done, an act out of selfishness.

He needed to be careful with how he approached this subject with her.

Because the last thing he wanted was to lose her.

~

Alice frowned as she caught one of the several routes for the future to go this week, Carlisle asking her about Jasper's birthmark.

It confused her a lot on how he might know about that, no one should know about that birthmark, just her, and maybe María, but that last wasn't something Alice liked to even think about.

She couldn't help but throw a look at Jasper, or to be more precise, at the birthmark on his thigh, he had ended up going out with Emmett earlier, hunting and wrestling in all that mud, she didn't know how could he be so willing to wrestle around mud like that.

I mean, she liked wrestling sometimes, with Jasper mainly, half of the time their wrestling matches ended up either in a tickle fight, or with their clothes missing. Point is, she likes wrestling him, but she didn't particularly like the idea of mud getting on her hair, that was such a pain to get rid of.

But if he had fun, she didn't think it mattered much, she loved that happy look he always came back with, to see him happy in general, it was a nice look on him.

He had taken a shower when he came back, and he was now dressing, she stared at the odd birthmark on his thigh, like a disproportionated star, or well, it looked like a star when you tilted your head to the side and narrowed your eyes.

Some scars had damaged the actual appearance of it.

-Enjoyin' the sight?- Jasper's amused voice caught her attention, she met his playful gaze with a smirk.

-Yeah, very much.- She conceded, his smug look at her praise making her chuckle, he could be so easy to please sometimes. Once he pulled his pants up she stretched her arms out.- Come here, I wanna cuddle.- She requested.

He didn't even hesitate to end the distance between them, throwing his arms around her in a tackle and rolling them on the bed, prompting her to laugh as she found herself engulfed between his arms, their legs tangling in a mess of limbs as he pulled her closer.

She pressed a soft kiss against his bare chest, right where his heart would be at, scratching his bare back lightly, the spot on his back with no scars that was. She knew better than to scratch his scars, the last thing she wanted was to cause him pain or make him uncomfortable.

Most of his scars didn't bother him, but she knew some others ached sometimes, something about feeling them sting, a sensation that most of the time got triggered with a single unexpected touch, reason he didn't like other people touching him.

She's never managed to understand what was the difference between her touch and other people's touch, she guessed it was because he was used to her touch enough to not react negatively to it anymore.

She heard his little content sigh as he relaxed against her, making her smile, even more so his next words.

-Do you know how much I love you?- Came his soft whisper.

-Me or my hands scratching your back?

-Everythin' about you.- He told as a statement of fact, hugging her tighter against him, fingers burying into her hair.

Alice chuckled, prompting Jasper to smile, of all the possible situations, he had to admit these were one of his favorite moments, like his happy place was more like it.

To feel her arms around him and the warmth of her emotions… it was nice.