This began a while ago... I worked on it on and off (very often off...) and this is the final result. It was a random idea I had while I was searching 5927 a while ago... Please enjoy!

Warnings: Limes, YAOI (BXB)

Pairings: 6927/5927

If you dislike YAOI, as in homosexual loving, PLEASE leave now. You have been fairly warned.

Disclaimer: I do not own KHR or any of the characters. I merely use them for my entertainment.

Your Lie

"H-Hah.. Ah..." Soft whispers slipped past deliciously swollen lips. A chuckle came from the teen before the writhing brunette.

"Are you enjoying yourself, Tsunayoshi-kun?"

Tsuna released a groan as the pace on him increased, the wondrous friction sending waves of pleasure coursing through his body. "H-Hurry..." He murmured softly, opening his legs further invitingly.

Ignoring the soft whimper of protest at his touch being removed, Mukuro lifted one of the brunette's leg, hooking it around his waist. The wall behind Tsuna pressed against his back as Mukuro pushed forward. A pained groan escaped swollen lips as a rough thrust broke past his unprepared entrance.

"M-Mukuro-san..." Tsuna whimpered, pleasured shivers coursing through his body as the mafia member began a rough pace within him. The brunette gasped and writhed, sinking into the wonderfully pain-filled pleasure Mukuro provided.

This was what he wanted. This was why Mukuro came. This was why he could never tell Gokudera what he did while the other went out for errands. Tsuna knew full well what he was doing against his spouse; he was sure none had found out of it either.

Mukuro chuckled as Tsuna arched against him, the wall damp with the brunette's sweat. "Kufufu.. Come for me, Vongola Tenth." He murmured, reaching between them with one hand to further stimulate Tsuna. The stimuli proved too much for the brunette; Tsuna came with a scream, orgasm overriding his senses.

Mukuro continued his thrusts, using the contracting walls of the brunette to reach his own peak. He came quietly with a soft groan, pressing further into Tsuna as he came. He lowered his head, kissing at the exposed throat of the mafia boss. "Mm, another round, Vongola Tenth?"

Panting heavily and barely able to stand on his own, Tsuna shook his head. "N-No, Mukuro-san... I have to get ready for… for Gokudera(1) to return.." he murmured in reply, weakly pushing against Mukuro's chest. The blue-haired man smirked at the futile pushes, but relented and pulled out of the boss.

"May I join you then, Tsunayoshi-kun?" Mukuro purred, taking one of the brunette's arms in his to help support him on his way to the bathroom. Tsuna shook his head. "No, Mukuro-san.. It'll just lead to..."

"Kufufu... I'll be good, Tsunayoshi-kun." Said brunette shivered at the sensual tone. He was steadfastly losing his conviction to say no. "Gokudera (1) won't be home for a while..."

Tsuna shook his head again as Mukuro opened the bathroom door and led him inside. The brunette attempted to slip out of his grasp in hopes of catching him off guard. "Mukuro-san, please... Gokudera will be home soon... He'll figure it out if I'm limping later on..."

Mukuro did not seem to hear Tsuna as he lightly ran his fingers over the perky nipples of the Vongola Tenth; despite his best attempts, a broken moan slipped past the brunette's lips. "You say no, Tsunayoshi-kun, but your body language speaks differently." He palmed the new erection that Tsuna was developing.

Tsuna shuddered, subconsciously leaning closer to Mukuro. "Please... Mukuro-san, don't..."

"JUUDAIME, TADAIMA(2)!"

Tsuna stopped cold, pushing Mukuro away in a heartbeat. "G-Gokudera... H-He's here... Mukuro-san! Hurry, you have to leave!" He hissed under his breath, utterly panicked. He pulled the knob for the water, not bothering to watch Mukuro make himself scarce. He trusted that Mukuro would leave without leaving a trace to show he was there.

"Juudaime?" Gokudera gently knocked on the bathroom door, shedding his long-sleeved shirt. "Can I come in?"

Nervously, Tsuna rubbed at his behind, hoping it wasn't obvious what had only happened a few minutes before. "Yes, Gokudera," he called back; it would be odd if he denied Gokudera entry.

The silver-haired man entered, dropping his shirt onto the floor. "Juudaime, tadaima." He repeated with a soft smile, pulling down his pants and boxers. Tsuna smiled back, reaching out a hand for Gokudera. "Welcome home, Gokudera."

The guilt came after their shower; Gokudera had missed him for the few hours he'd been gone and had needed to express his love to Tsuna once again.

As they lay in bed together, Gokudera spooning against Tsuna's back with his arm thrown protectively over the brunette's waist, Tsuna couldn't help but think of the next day. Would Mukuro return? Was there any way he could get Gokudera back out of the house so Mukuro could come back?

"Aishiteru(3), Juudaime," Gokudera mumbled gently against Tsuna's back. A pang was felt in the brunette's chest, but he lay his hand over Gokudera's and intertwined their fingers. "Aishiteru, Gokudera."

The next day, Tsuna sent Gokudera off to see if Yamamoto would be able to leave the hospital soon. Gokudera inquired as to why Tsuna couldn't come with him, but the brunette quickly replied with having some paperwork to complete.

It seemed to have been a suitable excuse, for Gokudera left after that without a word.

Tsuna was shivering, wringing his hands together as he anticipated Mukuro's arrival. They would have to be extremely quick.

"Well, Tsunayoshi-kun, I did not think you would want me back so soon." The brunette turned to face the mismatched eyes of Rokudo Mukuro. Tsuna's fingers grasped the shirt of the blue-haired mafia member, tugging him down roughly to meet his lips in a bruising kiss.

It was fast, rough; Tsuna was sure that he was bleeding. He was so far gone, the wall so cold against his heated back, that he didn't notice the sound of the door opening down the stairs.

His howl of pleasure drowned out the startled gasp of the silver-haired man standing at the bottom of the stairs. Mukuro was all too aware of the new presence, but he didn't really care. After all, he wasn't the one attached to the man downstairs.

Tsuna panted, leaning his head back against the wall, sweat dripping down his temples. He released a soft moan at feeling warmth surge into his opening; Mukuro pulled out, blood and cum coming out with him and dripping to the floor beneath them.

"O-ow, Mukuro-san..." Tsuna whimpered lightly, unwrapping his legs from around Mukuro's waist. Mukuro smirked, turning his gaze down the stairs to the male watching, cigarette limp against his lips.

Beside Mukuro, a startled gasp signaled that Tsuna had noticed their watcher. "G-Gokudera..."

No one said a word; Tsuna could hardly stand the silence. He'd just been caught having sex, orgasming no less, with Mukuro. God knows what Gokudera would do now.

"J-Juudaime.." Tsuna held his breath, waiting for the blow. "Why..."

Tsuna stopped, eyes flicking down to meet Gokudera's stormy eyes, eyes that were lined with unshed tears. "I.." He didn't know what to say. Sawada Tsunayoshi did not know why he'd even allowed Mukuro to defile his body in such a way time and again.

"You cannot give Tsunayoshi-kun what he wants, Gokudera." Mukuro spoke in his place, that annoyingly smug smirk planted firmly on his lips.

Gokudera's sharp breath of intake was clearly heard up the stairs. "What?" He hissed, biting down on his cigarette. His fingers itched to draw dynamite, to curl into fists, to slam that smug smirk off of his face!

"You could never give Tsunayoshi-kun what he wants, Gokudera. The Vongola Tenth does not want to be treated with respect and love, the way you treat him." Mukuro continued. "He wants to be hurt. He wants to enjoy pain and pleasure expertly given to him."

Gokudera couldn't reply. He couldn't give Juudaime what he wanted? He wanted to feel pain? What? That wasn't the kind Juudaime he knew.. His Juudaime would never... "What did you do to him!?" He roared, dashing up the stairs and taking a swing haphazardly at the blue-haired man.

Mukuro laughed at the swing, moving away easily to avoid it. "You know I speak the truth, Gokudera. Why else would he have come to me?" Gokudera's swings weren't making any headway; his tears were blinding his vision.

"Gokudera, stop!" Tsuna tried to intervene, but the moment his hand touched Gokudera's arm, the silver-haired man drew away immediately, as if burned. Tsuna drew back, gaping up at his husband, his lover, his friend.

"I... I'm sorry, Juudaime..." Gokudera choked out, rubbing a hand over his eyes in a desperate attempt to try and put up a front. Mukuro had already disappeared, leaving Tsuna to deal with damage control.

"Gokudera.. I'm sorry.. I- I should have..." Tsuna paused at the hand raised to silence him.

"Juudaime... I... I need time. Please don't look for me. I'll... I might come back, but do not come after me... I can't deal with this right now, Juudaime." Gokudera turned his back to the brunette; Tsuna could swear his heart had just been torn in half.

And with that, Gokudera walked out of their home.

-.-.-.-.-.-

(1) – As I've learned (from many manga), when someone stops using honorifics with another person it's because they've earned it, and it represents a more intimate relationship. It can also be seen as an insult by someone who hasn't earned it.

(2) – The English equivalent would be "Tenth, I'm home". I translated the whole sentence, just in case.

(3) – One form of saying "I love you"

-.-.-.-.-.-

Well, that certainly didn't end the way I expected... Uh, feedback please?

Edit: Yes, this story was originally marked as complete... However, I was informed that the day I posted this (September 9th) it happened to be Gokudera's birthday. Dear lord, I felt so horrible. ;A; To make up for it, I will be continuing this. But, the next chapter will be the last.

PPS: Guys, please go vote in my poll. It's urgent you help me prioritize! Or I'll never get to writing the second part. XD