Disclaimer: I do not make any profit from this story. Takao Aoki owns everything. I own a pen and the ideas inside my head.

So this story... well this story is sinful and sexy as hell. Not sure how many flames I'm gonna get for this one. What inspired me to write it? You're better off not knowing.

WARNINGS: Lemons galore and just throw out your bible. Like I can feel the sin radiating off these pages!

How did they end up like this? Kai moaned as Tyson thrusted inside of him and he dug his nails further into Tyson's black shirt.

This was never supposed to happen again. Especially now that Tyson was married, but as Tyson kissed him again, Kai found himself not caring and kissed back just as passionately.

It had been so long and this just felt so right, dammit!

He had no idea what had finally broken Tyson down, but Kai was going to enjoy each and every sinful moment, his heart, his soul be damned. He wanted this. He needed it.

Fuck, he missed Tyson.

His mind went blank, gloriously blank, as his prostate was hit and he pulled his lover down for another hot kiss.

The sound of the door opening made both of their eyes widen in fear and they jumped away from each other and quickly tried to make themselves look presentable and not like they were fucking like rabbits two seconds ago.

Tyson was the first to recover and he welcomed his wife at the door, his happy-go-lucky smile on at full force. "Hey, did the boys behave?"

"Oh y'know, like they usually do. Makoto getting on Gou's nerves until I threatened him with no ice cream." She kissed him on the cheek. " Did you two get a chance to catch up?"

"Oh yeah." He picked up 6 year old Makoto and gave him a kiss.

Kai looked on with a gentle fondness and admiration. Tyson was an amazing dad.

"Daddy, can Gou stay for a sleepover tonight, pwease?"

Gou immediately looked at his father with excitement in his maroon eyes. Hn. Gou was so much like him, addicted to the Kinomiya's warm personality.

"Sure if it's alright with them." Tyson looked at Kai with hopeful eyes and broke into a grin when the man just shrugged his shoulders.

"Fine with me."

"Yay!" Makoto jumped up and down then grabbed Gou by the hand. "You gotta see the Star Wars set my dad got for me!" He led the older child up the staircase and into his bedroom.

Tyson's gaze met Kai's and the Russian's heart raced. Cheeky bastard was sticking out in tongue in a seductive fashion, while Hilary's back was turned. Kai stuck out his playfully with eyes that screamed "Fuck me."

A sudden THUD from upstairs caught all the adult's attention. "I got it!" said Tyson, but Kai followed and what they walked into was a heavy wooden shelf knocked over and both Makoto and Gou sporting sheepish looks.

"What happened?" Kai's voice had his no-bullshit tone.

"We were rough-housing and we crashed into it and it fell." stuttered Makoto.

Tyson signed. "You two downstairs so Kai and I can clean this up."

The kids ran down the stairs faster than lighting.

Tyson laughed. "Kids, gotta love 'em."

"Or sell them on the black market for spare parts." muttered the Russian.

"Kai!" But when he saw the cheeky smirk and the playful ruby eyes, Tyson just laughed and grabbed one end of the shelf. "Oh jeez, this is heavy."

Kai sighed. "Whimp." he grabbed the other side and effortlessly lifted it and placed it back against the wall. "Are you seriously training kids how to fight?"

"Mmmhmm." The saucy look on the Japanese man's face made Kai look down and he was instantly hard again. Tyson's thick, long cock was out and standing at attention.

Without hesitation, Kai dropped to his knees and took the thick flesh into his mouth and sucked it soundlessly. Tyson's fingers curled into his ash-tone hair as he whispered "Oh, your lips are so soft."

This egged on Kai further and he took more of Tyson into his mouth.

"Oh god, you suck it so well...you're gonna make me cum already!" he gently pushed Kai's head away and put himself back in his jeans. Kai tried to keep the disappointment off his face, he wanted to make Tyson cum, he licked his lips and inwardly moaned. He had forgotten how much he loved Tyson's taste. He wanted more. Slowly he rose to his feet and headed towards the door, but Tyson grabbed his shoulder, leaned forward and whispered, his hot breath tickling his ear, "Next time you come over, I want to suck you off properly. I want more of this."

Kai was elated. He honestly thought that this was a one-time thing. A momentary lapse in Tyson's judgement. An itch they needed to scratch. He grinned. "I look forward to it."

As soon as they hit the bottom step of the stairs, the kids raced back up towards the bedroom, determined to finish their "Galactic Battle".

Tyson sat on the couch, next to his wife, while she surfed pintrest, and Tyson started looking at videos on his phone. Kai took that as his cue to leave. He went into the kitchen to grab his cellphone that he had left charging, checking his messages, all from his secretary. He was surprised to feel Tyson's presence beside him. "What's up?" he asked cheerfully.

"Just work. That asshole manager is trying to start shit again."

"Why don't you fire him?"

"Cause he's damn good at his job." His eyes widened in surprise when Tyson pulled him into an open-mouthed kiss. Electricity shot up his spine and he was turned on all over again. He kissed back with equal intensity, making sure not to make a sound in case Hilary overheard. They broke apart.

"Why is he so good?"

They kissed again.

"He's the only one who can do paperwork properly."

"He just fails with people?"

"Yeah."

Kai's eyes shot open as Tyson's tanned hand found it's way down his pants and into his briefs, he grabbed onto the fridge and dug his nails into Tyson's arm and bit his kiss-swollen lip to keep from moaning as pleasure swept over him, completely at Tyson's mercy as talented fingers stroked him.

The Russian knew that this was wrong. Tyson's wife was in the next room. Their kids were upstairs. But he was hopelessly addicted to Tyson's touches. Tyson's kisses. He was addicted to Tyson.

As he looked into those mahogany eyes, he just felt himself come completely undone. He could feel the pre-cum leaking from his cock.

All too soon Tyson pulled his hand away and moved back into the living room, leaving Kai horny and breathless.

Damn...

Once he composed himself, he stepped out from the safety of the wall, he grabbed his bag and started slipping his shoes.

Tyson was behind him. "Thanks again Kai. We'll take good care of him."

"I know. I'll be back after work tomorrow to pick him up."

Tyson's soft lips were on his once again and Kai's heart raced.

A Good-bye Kiss?

The emotion in Tyson's eyes shocked him the most. He didn't want him to go. He could only hope his eyes conveyed the same message.

"Bye Gou!" he called up the stairs.

"Bye Dad!" his son called back. There was no need for emotional good-byes. Neither of them were that affectionate. To his surprise though, it was Makoto who came running down the staircase and jumped into his arms. "Bye-bye Uncle Kai!"

Kai returned the hug. He loved this little boy as much as his own. "Bye Kiddo." He saw Gou wave from the top of the stairs and he waved back. The kids disappeared up the staircase again and Kai stepped out the door. "Bye."

Tyson kissed him again. "Bye."

There was no hiding the grin that was plastered onto his face. He turned around and got into his Lamborghini that was parked in the drive-way and pulled out. His lips burned. His heart was racing and his pants were painfully tight.

But it had been worth it.

He had dropped off Gou for a play date and to his surprise Tyson had asked Hilary to take the kids out to the park so they could "catch up".

As soon as they had left Kai decided to cut to the chase. "What's wrong? Don't you dare say its nothing."

Tyson took a shaky breath. "I hate to ask, but can you spot me a few hundred? The dojo hasn't been getting many students recently and I'm a little short."

Really? Tyson was getting so worked up over something like that? Money never had meant anything to him and they've been friends for years. "Yeah. No problem."

"Thank-you. You have no idea how much I appreciate it."

"Whatever."

"C-Can I ask you something else?"

Anything. He could ask for anything.

"Do you hate me?"

That question really threw Kai for a loop. Hate him? "Never. You still own a large part of my heart. You're my best friend, I can't hate you."

"I'm glad you don't."

He'll never knew what possessed him to ask. "Am I still in your heart?"

"You have no idea how much of my heart still belongs to you."

"So if I did find someone else, like you keep telling me to do, it would hurt?"

"Crushingly so."

And that's how they ended up on the couch in a compromising position when Hilary and the kids came home.

You see, there had been a time where Kai and Tyson had been each other's everything.

Trust Kai to fuck up something so perfect.

So there you have it guys, chapter 1! Let me know in a review if I should continue this story or keep it in the dark corners of my mind where it belongs! ~RPS