Title: Animal Instincts

Author: celestial-fire-angel

Rating: M for language and future adult situations, as well as mpreg.

Pairings: S x Y mainly

Disclaimer: I do not own YGO or Love Pistols, just borrowing the characters and concepts, respectively.

Author's Note: Hey guys, welcome to my new story Animal Instincts. I know I shouldn't be starting a new story without finishing my other ones but I have inspiration for this one so this is gonna get written. At least the creative juices are flowing for this one! I hope everyone likes it.

Chapter 1

Yami rubbed his eyes as he looked around him, was he seeing things? Even after rubbing his eyes, he still saw a whole train full of…monkeys? What the hell was going on here? Why did the people look like monkeys…and there were even some dogs and bears. Now he was confused and he tried hard not to stare but he couldn't help it. It wasn't every day that people started to look like animals for no good reason. He checked the date on his watch just to make sure it wasn't Halloween, which it wasn't. Cherry blossoms didn't bloom in the fall so that meant he wasn't seeing things. There really were monkeys with him, riding the train.

His visions of seeing animals instead of the real person started when he came back home after an accident involving a pool, a flip turn, and a concussion during his seventeenth birthday party, held by his closest friends. When he came to, in a hospital, he saw the doctor as a bear and nearly gave the doctor a concussion after throwing everything he could at him, missing with the bedpan by only a few centimeters. Even his brother, who was by his side, looked like a feline dressed in their school's uniform.

He snapped out of his daze when he felt hands touching him. Oh great, now he was with a train full of perverted monkeys who were trying to feel him up, what a great day this was turning out to be. His free hand, the one not holding onto the handhold, balled into a fist. He was close to punching all the perverts' lights out if they didn't back off in three…two…on-

BAM!

The train jerked and all who had been touching him were thrown to one side. Just in time too, the conductor announced his stop. He was eager to get away from those horny monkey bastards who couldn't keep their hands to themselves. Stepping off the train into a throng of people at the station, he brushed himself off, hating the lingering feel of some of those who had the nerve to touch him inappropriately.

It wasn't much better at the station. He was still seeing animals though now there was more of a variety, which didn't help. Quickly, he pushed through the sea of people and hurried towards school. He checked his watch again. If he ran the last third of the way, he could make it before the teacher arrived. When it wasn't so crowded on the streets, he sprinted through the gates of his school and dashed up the stairs, throwing open the doors to his classroom, out of breath but safe. "Made it," he muttered.

"Yo, close call, Yami."

"Hey Jou," Yami gasped, falling into his seat next to his best friend, one Jounouchi Katsuya, trying to catch his breath. He was trying hard not to stare at his friend. It didn't help that he currently looked like a dog, but not just any dog, he looked like a really large beagle or some other non threatening-looking dog.

"You looked pissed. Somethin' happen?"

Yami sure as hell wasn't going to tell him how he was felt up by a large mob on the train. "No, everything's fine." Or it will be as soon as he stopped seeing everyone as animals.

"Someone spray perfume or something on you?"

"What?"

"You smell really good…"

What the hell was Jou talking about? He lifted his arm and smelled his sleeve. All he could smell was the detergent he had used to wash his uniform but that was about it. "I don't smell like anything, Jou."

"Yeah you do…can't really describe it, but you do. Really good."

Before Yami could figure out what was going on, Jou was leaning towards him, glazed look in his eyes. "Uh…J-Jou?" Yami leaned back as Jou leaned forward not understanding what was going on. Jou looked like he wanted to…kiss him. "Jou? Jou!" It was only when Yami was practically screaming at his friend did Jou look like he came to his senses.

"Uh…hey Yami," Jou said, blinking. Aware of the whispers, the blond quickly sat up and faced forward, a bit embarrassed he had let his body take over his mind instead of the other way around. "Uh…" He wasn't quite sure what to say next because he had just embarrassed himself in front of all his classmates. He was well aware of the snickering going on behind them.

"Yeah," Yami just said, pulling out his notebook. Never had he been so glad to see the teacher walk into the classroom to start class.

~.~.~.~

"Come on, wake up, you'll be late for the rest of your classes!"

"I'm not going, I just finished with all those meetings yesterday. Besides, why aren't you at school?"

"Kaiba Seto, get your butt out of bed this instant! I'm here because I forgot something here."

With a rough yank, one Kaiba Seto found himself covered only by the pajamas he had thrown on haphazardly the night before when he collapse into bed after a long day of meetings with his board of directors. Sighing, he sat up and glared bleary-eyed at his brother, who stood there with his blanket gripped in both hands. "Mokuba, I'm serious, let me sleep."

"You're not missing any more school."

"Mokuba…" his voice now held a warning tone. He was in no mood to deal with this right now.

"Go to school, Seto, besides, you're looking for a mate right?"

"Who told you that?" In Seto's opinion, Mokuba was too young to be thinking and talking about mates or mating, even if he was intelligent for his age.

"A little pixie flew out of your brain and told me."

"There's no such thing as pixies and it's impossible for them to fly out of people's brains," Seto pointed out dryly, getting out of bed. There was no point in going back to sleep now that his brain was awake. Mokuba managed to get the best of him again. Him, Kaiba Seto, the youngest CEO in Japan, was bested by his little brother, a feat no one in the adult world had managed that.

Mokuba rolled his eyes at Seto's comment. His brother's sense of humor was as dry as the Sahara. "Anyway, they say there's a missing link right at our school!"

At this, Seto perked up and paid more attention to what his brother was saying. A missing link would be the perfect mate for him. Missing links were rare, born from apeman(normal human) parents who had a zooman ancestor. Mating with a missing link would definitely continue his lineage. He, a dragon heavyweight had a hard time breeding because of his weight class. Lightweights, at the bottom of the zoomanity pyramid, were the most fertile of the zoomen followed by middleweights and then heavyweights.

Zoomanity was divided into different class systems and ordered from rarest to most common. There were seven types of zoomans: Merfolk, Missing Links, Dragon, Bruin, Catamount, Dog Gods and Snake-Eyes with Merfolk being the rarest and Dog Gods being the most common. The types were further divided into three weight classes: lightweight, middleweight and heavyweight. Due to the high infertility rate that plagued heavyweights like Seto, most of the heavyweights chose to mate with lightweights or middleweights in order to continue their lineage but Seto was not going to stoop that low. He searched for a missing link, which had all the necessary rare qualities he was looking for with the fertility of the apeman.

"Our school, a dump like that, crawling with monkeys and dogs all over the place, can provide a missing link," he said to himself, going to his closet and pulling on his school uniform. He reminded himself that it was to meet the missing link and that the future of his line depended on this meeting.

"The car's already waiting," Mokuba chirped, skipping out the door. He won the battle today.

~.~.~.~

When the bell rang for lunch, Yami was first out the door. He needed to get out of there, needed to find some space for himself. The only place he could think of was on the roof of the school. Taking the stairs three at a time, he pushed through the people who were staring at him, the same glazed look that Jou had gotten that morning.

Pushing open the heavy metal door, he stepped out onto the roof and took a deep breath. He was free, at least for the moment. He walked to the edge of the roof, looking out across the school grounds at his schoolmates spilling out to enjoy lunch in the spring air. Letting his messenger bag settle on the ground, he sat down and leaned against the metal chain-link fence surrounding the roof. Now to have his lunch in private with no worry about anyone coming ont-

"There you are!"

Damn, how did people manage to find him even up here? He was not safe anywhere anymore! Looking up, he saw the slu-er…most popular girl in school sauntering over to him, skirt hiked up a few inches than was regulation but no one cared. He wanted to make a hasty retreat but she had already advanced too close for him to do much.

"Yami," she purred, folding her arms under her chest. Yami tried not to gag at the sight of Himekouji Kaoruko practically spilling out of her blouse.

"Himekouji," he said, giving her a nod in acknowledgement. He stuffed his lunch back into his bag and stood up, edging his way towards the door.

"You can call me Kaoruko," she said, following Yami, matching his steps.

Like hell he was going to be on a first name basis with this…person. He was trying hard not to be impolite but she was pushing, really pushing it, and he wasn't talking just about her chest. He took his eyes off of her for a moment to judge the distance he would have to sprint to reach the door but in that moment, she had closed the distance and tackled him to the floor. "What are you-!"

"You'll enjoy this, Yami," she cooed in her sickeningly sweet voice, unbuttoning her blouse faster than he thought was humanly possible.

"Get off!" No way this was happening!

She now straddled his legs, making it impossible for him to move or try to make an escape. Was this it? Was he about to be…raped by a girl?! Unbelievable! But it seemed that way…she was sitting directly over his groin, grinding against him and pushing her breasts into his face.

"I'm about to give what's most precious to you, dear Yami," she said with a giggle that sent chills down Yami's spine.

Yami opened his mouth to reply that she had already lost that year ago, probably to some guy she didn't even know but nothing came out. When had she unbuttoned his shirt? How was that even possible? She was moving closer, her face inching closer to his. He could smell the cherry of her chapstick…it couldn't be this way…he couldn't lose his virginity this way…oh gods, any moment and he would feel those monstrous lips, greasy from the chapstick and disgustingly wet. Curse his chivalry, curse it, curse it, curse!

"So, this is the missing link."

A new voice interrupted and Yami looked up to see a tall brunet looking down at them. His face turned scarlet, matching the tips of his hair at being caught in this situation by someone. But he was grateful when Kaoruko let out a shriek and got off him, running towards the door while fixing her clothes. With her gone, Yami stood up and brushed off his clothes, knowing he would have to wash this uniform again to get rid of her scent.

"I suppose that means I have to thank you?" he asked the brunet. To his surprise, the brunet looked…normal, meaning he looked like an actual person.

"No, just let me fuck you."

Author's Note:I hope the whole zoomanity pyramid thing was understandable! If not, I'll go into more detail in later chapters, promise!

Read and Review! Thank you!