A/N: This is one of the porniest things I've written to date, which if you've read anything else I've done, you'll know that is quite an achievement. Just fair warning.

"Oh, oh God!" Jim shouted as he orgasmed, his come shooting all over his stomach. He slumped down on the couch and waited for his vision to clear. When it did, he looked over at where John was bent in half, his legs up around Seb's shoulders as Seb fucked him. Sometimes Jim liked to sit back and watch his two favorite boys go at it. He would have thought watching his boyfriend fuck his best friend would make him jealous, instead it just turned him on, especially hearing the noises Seb was eliciting from John. Honestly it was better than porn and included a front seat viewing.

Jim sat up and grabbed some tissues, doing a quick clean up and then sat back to watch the other two finish. He could tell Seb was close, fucking John hard and fast to rush to his release. John was pressed up against the sofa, fingers biting into Seb's arms, head thrown back and his lips parted as he moaned obscenely. Jim could feel his cock valiantly trying to stir again even in its exhausted state. He'd never imagined he'd be lucky enough to have this in his lifetime. To have two gorgeous men to love and fuck. His mother had once called him unlovable but he'd sure shown her (especially when he sent her a Christmas card of the three of them naked).

He was pulled from his thoughts by a knock on the door. He looked over at the other two. "Are we expecting someone?"

"I don't think so." Seb grunted between thrusts.

John grabbed Jim, hand on his chin, and pulled him in for a kiss. It was hot and sloppy as John moaned into his mouth. "Be a dear and answer it?"

"Fine." Jim grumbled, sad to miss the end of the show. He loved seeing his men orgasm and he was irritated that someone was interrupting them. He snatched his dressing gown off the floor from where he'd thrown it earlier, tying the belt loosely. "Don't finish without me." He called over his shoulder.

"Wouldn't dream of it." John called back before groaning loudly.

"What is it?" Jim snapped agitatedly as he opened the door. "What do you want?"

"I'm here to see John." A tall, awkward gangly boy stood in their doorway, adjusting his bag on his shoulder.

"Oh Fuck Yes!" John shouted from the other room.

"So you're Sherlock I presume?" Jim sneered, already decided that he didn't like him.

"Uh, yes." Sherlock nodded, shifting his weight from foot to foot. Sherlock looked Jim over, taking in his state of undress and his tousled hair from when John had been running his fingers through it earlier. Jim felt like he was being examined, sharp grey eyes looking at every detail.

"Jesus Fuck right there, right there, that's it."

"You're Jim, right?"

"That's me." Jim said, putting on a fake smile for the taller boy.

John screamed so loudly Jim was certain the windows rattled. He decided he better close the door before the neighbors complained…again. He opened the door wider and gestured Sherlock inside, closing it behind him.

"You're early." Jim said, narrowing his eyes accusingly.

"Yes. Is John alright?"

"Better than alright, I'd say." Jim smirked and headed back to the living room, not bothering to see if John's latest fuck buddy was following him.

"JIM I'M ABOUT TO FUCKING COME –HMMPH- ALL OVER MYSELF SO YOU BETTER GET YOUR ARSE – JESUS CHRIST- BACK IN HERE." John shouted at the top of his lungs.

Jim's grin widened when he looked back and saw how startled Sherlock was. "I'm here and with a guest." Jim announced, stepping back into the room.

"Sherlock!" John beamed at him until Seb did a particularly well aimed thrust and John's eyes fluttered closed. "You're early." John said panting.

"My class got out sooner than expected." Sherlock explained, his whole face red with a blush that Jim could see went down to his neck. He looked uncertain, as if debating if he should stay or go. Jim was inwardly chanting for him to leave. "So I thought I'd come over to spend some time with you before we went out."

"Oh, that's – unnnff – sweet." John grabbed Seb's short, cropped hair and brought him down for a ravenous kiss.

Jim looked over and saw Sherlock try to sneakily adjust himself in his trousers. So apparently Jim wasn't the only one who found such a thing hot. Jim decided he was done just watching. He made his way over to the sofa and sat down next to John. He wiggled his eyebrows at their guest and then snaked his hand between his boys and curled it around John's cock.

He hardly had to move his hand at all, Seb's thrusts pushing John in and out of his fist. They were both extremely close and all Jim had to do was rub his thumb a few times over the head and John's cock twitched and pulsed, coming over Jim's hand.

"Oh fuck." Seb moaned and arched his back, pushing deep until he spent himself inside John. Jim removed his hand quickly, knowing Seb was about to drop like a rock and most likely trap it underneath him. He glanced over at Sherlock who had gone even redder, a bit of sweat forming at his hairline, causing his fringe to stick to his forehead. His pupils were blown wide as he obviously stared at them, the tent in his trousers unable to be hidden now.

Jim decided to show Sherlock exactly what life with them entailed. He brought his hand to his mouth and started licking the come off, taking his time so his tongue trailed up his fingers. When he got to his ring finger, he sucked it into his mouth and moaned. He saw Sherlock visibly swallow and turn away in embarrassment. Jim couldn't help grinning.

"Sherlock, come here." John said, beckoning him forward with his finger. Sherlock licked his lips but hesitated. "Sherlock, come here, please."

His feet seemed uneasy beneath him as he stumbled forward. Jim had to hold back the giggle threatening to bubble up. Seb had managed to come back to himself and pull out of John, resting on the sofa next to him. So John was sitting there lazily, his legs spread as Sherlock came to stand between them. John grabbed Sherlock by the belt-loops of his trousers and pulled him forward, glancing up at him with a seductive look.

"As if I would leave you in such a state." John smirked and began undoing Sherlock's zip.

"Oh, um, John, you really don't have to." Sherlock insisted quickly even as John tugged his trousers down.

"I want to." John said sitting up so he was face to groin. Sherlock shivered and stared down at John, mouth slack in awe. "We take care of each other around here."

Jim scowled, unhappy with Sherlock suddenly being included in the collective so quickly. He realized that watching Sherlock get sucked off was the last thing he wanted, even if it was John doing it. "Well as much as we'd like to stay and watch, we'd better shower before we go out." Jim heaved himself up off the couch. "Seb." He called for his boyfriend over his shoulder, expecting him to follow.

Jim and Seb shared the shower, kissing languidly under the spray. Jim ran his hands over Sebastian's tightly packed muscled, always enjoying how toned he was. He did it again with the body gel they shared, liking that they smelled the same. It smelled like home to him and comforted him.

It didn't take long for them to both get hard again. They pressed against each other as Seb took them both in his large hands and began wanking, their dicks sliding against each other. "Oh Sebastian." Jim gasped, bracing his hands against the walls of the shower. He canted his hips, unable to stop himself from thrusting a bit and causing more friction between their cocks.

"Jim." Seb groaned, bending forward to capture Jim's lips again, biting and sucking at them hungrily. The steam of the shower made the air thick and difficult to breathe. He dropped his head back and gulped in air, shutting his eyes tight as white sparks danced behind his eyelids.

"Yes! Yes!" He shouted as his whole body shook and thrummed with pleasure. He felt Sebastian's release almost simultaneously with his own. He collapsed onto Seb, pressing him against the shower wall, arms around him tightly. It took few moments for his breath to even out and his heart to stop pounding. He placed soft kisses against Seb's chest and reached down to entwine their fingers.

"I love you." Jim said quietly, resting his head against Seb.

"I love you too." Seb kissed the top of Jim's head and ran his free hand up and down Jim's back soothingly.

"You're the best thing that's ever happened to me." Jim raised his head up to smile at the taller man. "Well, you and John. I don't know what I'd do without you two."

"Probably spend all your time on your laptop wanking to porn."

Jim snorted and pulled Seb down for a kiss. The water was starting to get cold so they washed themselves quickly and got out before it became unbearable. They toweled off and Jim put his dressing gown back on. Seb, however, had no problem walking around naked.

When they opened the door, John was standing there, tapping his foot impatiently. His lips were red and swollen, a slightly glazed over Sherlock standing a few feet behind him. Jim knew how good John's blow jobs were and if he hadn't just been having mind-blowing sex with Seb in the shower, he might have been jealous.

"You two wankers used up all the hot water, didn't you?" John chastised but he was grinning.

"Sorry." Seb mumbled and grabbed Jim's hand, leading him to their bedroom.

XXXX

Sherlock and John were lying on John's bed, kissing lazily while John waited for the water to heat up to shower. Sherlock was on his back, with John on top of him, hands braced on the bed to hold himself up so he wasn't crushing Sherlock. John was quite skillful when it came to kissing and made even the slightest glide of his tongue extremely sensual.

It was amazing to him how much he wanted John. He'd never been an overly sexual person but the sheer want he felt was almost overpowering. He wanted to fuck John and have John fuck him. To suck John off and do anything John could think of, maybe even things Sherlock hadn't heard of. He wanted everything, absolutely everything.

John broke the kiss to trail his lips down Sherlock's jaw and eventually to his neck. He made his way down to the small sliver of skin shown by the few buttons Sherlock had undone on his shirt. He felt John's hands brush over his torso and start unbuttoning his shirt. Pulling the fabric aside, he took one of Sherlock's nipples into his mouth, swirling his tongue over and around it. Sherlock let out a gasp and fisted his hands in John's hair. John chuckled quietly before gently nipping at the now hardened nub and then sucking on it.

"Oh God John, fuck me." Sherlock moaned, forgetting himself for a moment.

John pulled away, frowning slightly. "No." he shook his head, sitting up in the bed. He felt so far away and Sherlock wanted to reach for him, pull him back. Instead he stared at John's profile, at a loss for words.

"I – I –"

"I'm sorry. I shouldn't have taken things that far." John caressed his hand over Sherlock's cheek. "I want you, God do I want you."

"Then have me." Sherlock offered; spreading his legs slightly, an open invitation.

"Oh God." John groaned, scrubbing his hand over his face. "You're really not making this easy for me."

"Actually my intention was to make it hard." Sherlock said suggestively, reaching down to cup John through his trousers.

John snorted and grabbed Sherlock's hand, gently pushing it away but interlocking their fingers so he knew there was nothing wrong. "You haven't made your decision yet."

"I have, I've decided. I want to be with you."

"But you don't understand."

"You wanted me to see what you were like with your flatmates. I think I've got a pretty good idea now."

"What you saw down there wasn't everything. It's not all about sex. If we do this, you won't be the only one in my life. It's going to be you and Jim and Seb. If you want me to stop with the casual shags I will but I won't stop with them. I care about them and they're very important to me. Can you live with that?"

"Yes." Sherlock nodded in exasperation.

"You have to be sure. I like you Sherlock and I don't want this to be for just a week or a month. But I can't give up Jim and Seb. I can't and I won't."

"I understand."

"Please." John shut his eyes and gave Sherlock's hand a light squeeze. "Just come out with us tonight. It's all I ask. Come out with us and if by the end of the night your answer is still yes, then I will fuck you into this mattress."

Sherlock bit his lip and slowly a smile spread across his face. "Alright." He nodded and John smiled in return.