AN: I should be writing the next chapter of "Butterfly with Invisible Wings"...but I'm on a piece of writer's block. I'm not sure if I'll ever finish this, but I'll try. Read the stuff on the bottom. It's IMPORTANT. Also, I might expand on certain things at the bottom. This is for only the first chapter.

Disclaimer: Don't own. Otherwise Tsuna's dying will form will never be invented

Warnings: Yaoi/Slash (Dunno if there's gonna be romance but if there are, it ain't straight), Incest (Maybe, or just Bromance),OOCness, AU, Mentions of Pagan legends, Violence, Blackmail, Humiliation, Unimportant OCs (Natsu is not OC), Cursing etc.

Notes: Tsuna is normal Tsuna and Natsu is HDW!Tsuna. Their appearance are changed, deal with it. I tweaked their personalities a little too, I have to make Natsu human. Not a total battle-crazy antisocial icecube. Note that I have made Tsuna have OCD. OCD is an anxiety disorder in which cause people to have unwanted or repeated thoughts, feelings, ideas, or irrational behavior. It also causes severe uneasiness, apprehension, fear, worry, basically paranoid. Also has strange beliefs. For example, fear of certain numbers etc. People who have them is thought to have above-average intelligence as the irrational behavior often emerge in high attention to detail, risk avoidance, planning, etc. Some OCD patients, are known to be 'allergic' to messes, and then is compulsed to go on a cleaning spree.

Chapter 1: Double Trouble

Sawada Natsuyuki and Sawada Tsunayoshi were about as close as twins could get. They were also almost never separated from each other. Their mother, Sawada Nana swore up and down by her father's grave that the longest time they ever been apart was exactly 15 minutes and 25 seconds, and that was for their births. So it was common knowledge to all the residents of Namimori that if you wanted one twin, the other had to follow or they could just forget it.

Of course, if someone disagreed with that train of thought and tried to separate them...Well, the Sawada Twins were also famous for their 'counterattacks'. When they were age 7, one of the local middle schoolers made the mistake of forcing the twins to compete on separate teams during a soccer gane.

The next day, the middle schooler found himself covered in a mixture of pink paint and polka-dot feathers, dumped by his girlfriend, and his reputation in ruins after somebodies told all his peers about him still wetting his bed. It was only later that the Sawada Twins's involvement was discovered, but by then, the middle schooler really did not want to risk their wrath.

The twins were a deadly combination. If they combined their talents and personality traits they were lethal. Natsuyuki 'Natsu', the older twin, had an explosive temper, coupled with knee deep stubbornness and sense of honor, and was a genius in sports. Tsunayoshi or 'Tsuna' to his friends, had a ridiculously accurate intuition. Add it with his OCD (Obsessive-Compulsive Disorder), and Tsunayoshi was a talking encyclopedia of observation, filled with reputation crippling gossip and blackmail.

Out of the twins, Natsu was the hotheaded, more outgoing one. Though his temper had put him in more than one tight spot and had caused more than it's share fair of arguments, his temper was cooled by his boundless stubbornness and sense of honor and justice. This made him acted like a vigilante, putting him at odds with those in power, which unfortunately also meant that he was in detention nearly every day and was butting heads with the infamous Disciplinary Committee Perfect, Hibari Kyoya.

When not in rage, Natsu drew people to him like a moths to a flame, his stubbornness and sense of honor attracting people. He was quick to protect those he cared about, inspiring loyalty throughout. He had a brother complex the size of Mt. Everest and was average in intelligence.

Tsuna, on the other hand, was the quieter one, the one that kept his older twin brother in check. He was the one who was often pacifying his twin's temper and he was an excellent listener. The kinder and more compassionate one, Tsuna couldn't turn away even enemies if they need help, whether they requested or not. He was trusting and more than willing to offer friendship over conflict. Tsuna was loyal to fault, and was loved by his peers. He was shy though, and scared rather easily. He was also sometimes rather clumsy, causing him to fail at any sports. It was also a common sight to see Natsu drag Tsuna around, but then again, Tsuna did too.

But despite that, he was not to be underestimated. If anyone managed the miracle of triggering his mile long temper, they would find their reputation obliterated, hated by their peers, and thoroughly humiliated. Being quiet, loyal, and a good listener had made Tsuna the hoarder and protector of the secrets of his classmates and the residents of Namimori. His OCD and intuition just made him even better. Often more than not, Tsuna provided the sword and Natsu stabbed the enemy with it.

Despite the differences in personality, they were similar in appearance, though not exact. Both of them had chocolate brown eyes that gleamed amber in the sunlight and had the same face. But Tsuna was shorter than Natsu by an inch and an half. Natsu as also more built, Tsuna being more slender.

Both also had similar hairstyles. Natsu's hair was slightly more wild and layered, that fell to his neck with equal length sidebangs. Tsuna's hair was pretty much exact except his hair was slightly longer and his bangs fell to his shoulders. His hair was also not as wild. Natsu's hair was blonde like their father but Tsuna's was a pale brown like his mother's.

Their bond was something to be envied yet to be cherished. They would not have left each other willingly and would never ever if they could do anything about it. Unfortunately, there wish would soon be crushed and only with their burning resolve would they put it back together.

"Neh, Oni-san."

"What, Tsuna?" asked Natsu, looking over to Tsuna from their shared bed, lying on his back with his arms around his head. Their mother had once gotten the idea of them wanting their own rooms, which had been quickly squashed.

"Do...do you think we'll always be together?" asked Tsuna quietly, facing his twin brother. His face was forlorn, like there was some invisible burden on his shoulders. Huddled under the bedsheets, Tsuna looked like a lost puppy.

Pushing himself up into sitting position, Natsu stared at Tsuna incredulously. Natsu's eyes glowed with an amber hue in the darkness, clashing with his white tank top.

"What kind of question is that? Of course we'll always be together."

Tsuna nodded, though his expression didn't really change. Sighing, Natsu's hand ran through his blonde hair in habit. Turning his full body to Tsuna, revealing grey shorts, Natsu sat cross legged.

"What's wrong?" asked Natsu flatly, "You look like you heard me release 10 chihuahua's on your butt with no escape in sight."

"Just a feeling" mumbled Tsuna, "And why wouldn't I be? Chihuahua's are scary."

Natsu snorted, "Tsuna . You're 6 times bigger than it." Even with his teasing though, Natsu felt a sense of foreboding. Tsuna's intuition was ridiculously accurate, and had save Natsu in more than one tight spot. Yet there was no use dwelling on it. It would be best to just be careful, any keep an extra eye on Tsuna.

Tsuna pouted. Smiling, Natsu placed an hand on Tsuna's head. "I'm right, aren't I. Come on, let's go to sleep. We got school tomorrow. I promise we're going to be fine."

Nodding, Tsuna closed his eyes and quickly fell asleep. Chuckling, Natsu soon joined him, pulling the bed sheets over them. Hopefully, tomorrow would be fine.

How wrong he was.

Staring in disbelief at the unknown infant in front of him, Natsu nearly missed the thud of steps that signaled Tsuna's arrival. Why couldn't the morning be normal for once? thought Natsu, putting a hand to his face in exasperation.

"Good Morning, Oni-san" said Tsuna groggily, rubbing his eyes, still dressed in his sleepwear which consisted of a baggy white long-sleeved cotton shirt with matching shorts. Pulling his hands away from eyes, Tsuna finally noticed the strange toddler in their house.

And the toddler was strange. His spiky black hair, matching eyes, and olive skin was normal enough, but what he was wearing was what was strange. He wore a black suit, with an red dress shirt and blue tie. He also had a fedora on his head along with a chameleon and sideburns of all things. But the glowing yellow pacifier made the scene a little more normal.

Babies were supposed to have pacifiers right?

"Oni-san..why is there a baby in our house?" asked Tsuna, cocking his head sideways. Natsu could only shake his head, himself thoroughly confused.

Seeing his brother's confusion, Tsuna approached the baby and knelt down at his heels. Picking the infant up by putting his hands under his arms, Tsuna lifted the infant into the air.

"You're so adorable!" cooed Tsuna, "I wonder where's your mom?..."

To the twin's shock, the toddler brought up his hand and saluted his hat, all the while smirking. "Ciaossu. Thank you for the compliment. My name is Reborn, the world's #1 hitman. I'm here to tutor you and your twin as a mafia boss."

Natsu frozed and Tsuna turned as white as a sheet of paper. Dropping Reborn in shock, Tsuna stumbled back, only half-aware of Reborn who landed gracefully back to the floor. Putting a hand over his mouth, Tsuna stared wide eyed at Reborn.

Synchronizing as only twins could, the two yelled at the top of their lungs:

"MOM!"

Just a tester chapter. Favorite, Follow, and Review please.