Warning: Sex. Lots of it. All mansex. You were warned, enjoy.

Everyone went their own ways once Derek gave the ok. Isaac, Boyd and Erica all ran back into the house while Scott and Jackson choose to get into the hot tub with peter, though they sat on the far side, away from the creepy old man who had set his sights on the younger betas when they stripped down to their boxers for the second time that day.

"So sourwolf, what do you wanna do?" Stiles let his eye brows rise in question.

Derek's reply was a short one word answer that almost killed Stile's

"You." He said with a smirk. Stile's just stood there a little slack jawed at the broody mans apparent dirty sense of humor.

Gathering his thoughts Stiles let out a quick retort "Well we can't do that out here by the tub now can we?"

"I don't know, I could go for it." Christ, Derek was on roll tonight.

"I couldn't, no offence Stiles but id rather not watch my Alpha ravage you against the hot tub where I'm currently half naked and trying to keep a certain creepy uncle-" he shoots Peter a glare " from doing the same to me." Scott said, a little exasperated. Jackson grunted in agreement. Derek let out a short chuff in amusement.

"No ravaging the betas, Peter" he said with a chuckle.

"Oh come on, not even a little, I mean, technically this one IS mine originally" he said gesturing to Scott who shivered in response.

"Yes and then I killed you and he became mine, then you came back to life and you became mine as well. So no, no ravaging the betas. That's final." There was a certain spark of satisfaction in his eyes from being able to finally use that against the older man.

"Oh well you're no fun at all" he said while gesturing to some of the boys from earlier to come back and join them.

"Right" stiles said "So, you gonna go party with my Sourwolf or is it against the brooding101 code?"

Derek didn't say anything, he simply gave Stiles his weakest glare to date and dragged the boy off into the house.

Inside the party was really picking up, apparently more people had shown up to party. The place reeked of alcohol and sweat now, easily drowning out the stench of cheap cologne from earlier.

They walked past the kitchen first, where they found Boyd. He was leaning up against the counter, sipping from a red cup while keeping an eye on all the people around him. There were at least 2 girls and one guy eyeing him from the other side of the kitchen. A group of guys were gathered around the table playing beer pong. Derek just grunted and pushed Stiles along towards the front of the house.

They found Isaac next, well, sorta. He was pushed up against the wall in the hallway, shirt riding up while he was being attacked by a cute little brunette boy with a mean set of lips. They were really going at it, and honestly, Stiles was not surprised by this. Judging by the way that Isaac was always staring at Scott, Jackson and Derek when they were training he had figured that the kid was at least bi. Still, it was nice for a little confirmation. Derek just kept shuffling them past the pair, Isaac didn't even look up to acknowledge their presence.

When they finally reached the living room again they found Erica sandwiched between a cute blond girl wearing a very tiny shirt and tight pants, and a guy who had his arms wrapped around Erica's waist. She was clearly enjoying herself. She looked over and gave Derek and Stiles a quick wink before returning her attention to the blonds mouth. Well he wasn't going to lie, that was hot. It gave him an idea too.

"So, you want to show the youngsters how to dance?" he turned to Derek.

"Not really no" came the reply, Derek's face taking it's usual stoic expression

"What's wrong sour wolf? Two left paws? Haven't you ever seen "dancing with wolves?" or can you just not dance ?" If there is one thing Stile's is good at it's pushing Derek's buttons.

"Fine then" Derek replied, a wolfish 'I'm gonna eat you' grin spreading across his face as spun Stiles around and pulled his back flush against his chest.

It was on. Stiles reached back and wrapped his arms around Derek's neck while he ground his hips back into Derek's crotch. Derek pushed back, edging them through the crowd of sweaty teens, towards the center of the room. He placed his hands on Stile's hips and leaned down to mouth at the boys neck while they both ground against each other. Stiles turned his head back and took Derek's mouth into a deep kiss, Derek pushed his hand up Stiles shirt and rubbed it over the boys stomach.

They were attracting attention now, everyone was looking over at the two while they practically had sex in the middle of the room. Everyone kept dancing though, not wanting to stop the rhythm in the room. One brave guy came up to Stiles and tried putting his arms around the boys neck, poor thing. He heard the growl build in Derek's throat before he let it bellow out, causing the guy in front of him to scramble back into the crowd.

"Now now , we wouldn't want any of the guests to see those pretty eyes of yours now would we?" Missy came out of now where giving Derek a very stern look. "Put those bad boys away."

"How do you know about us, at the door earlier you remarked about it as well?" Derek said, but his eyes turned back to their regular color.

"I was a friend of the family, I've kept in touch with your uncle, now, if you don't mind, there is a cute little boy over at the snack table and I'm feeling a little peckish" She gave them both a sly grin and walked off in the direction of the table.

"So big guy, you want to take this upstairs?" Stiles said now face to face with Derek so he could grind their erections through their pants.

"Sure" Derek grunted out, dragging Stiles up the stairwell.

When they got to the top they went to the first room they saw, big mistake. When they opened the door they found Isaac, naked and sprawled out on his back, legs lifted over the shoulders of the guy from the hallway, being thoroughly fucked.

"Shit sorry sorry" Stiles apologized quickly slamming the door closed and turning to face Derek, whose face was now displaying every shade of red known to man.

"That was, uh, interesting eh?" he said.

"Isaacs a bottom" was Derek's only reply, eyes still wide open in shock.

"Yes yes, it would seem that way, now, let us move on from that moment and never look back on it again, ok?"

"Sounds good to me" Derek agreed.

"So, where is your room at?" Stiles asked.

Instead of responding Derek simply dragged Stiles down the hall and pushed him through a door into what could only be Derek's bedroom.

The windows had blackout curtains, the floor was wood and there was a huge bed in the middle of the room with plain grey comforter. The room was very dark and dreary in Stiles opinion. Well it would have been if there wasn't a Alpha werewolf currently stripping his clothes off and pushing him down onto the bed.

"So, this is really gonna happen, right?" Stiles squeaked out.

"No" Derek deadpanned as he tore off the remainder of their clothes.

He positioned his knees between Stiles legs and leaned down to kiss him. Stiles leaned up into the kiss until Derek broke it off. He started mouthing at Stiles neck, human teeth just barley breaking the skin, oh yeah, those would be marks. He kissed his way down the boys neck to his chest, stopping to lick at one of his nipples. He swirled his tongue around it, lapping at the bare skin. Stiles let a moan escaped his throat before Derek moved further down. He placed tender kisses all the way down Stiles happy trail, ending at the base of his cock. Derek let his tongue flick out against the head, licking up a bead of precum at the tip.

"God Derek, come on, you're going to kill me." he moaned out and gasped as Derek took his head into his mouth letting his tongue work its way around the under side of his dick.

Derek must have run out of patients as well because he took Stiles all the way into his mouth. His throat worked around the length and his tongue wrapped itself around his shaft as Derek began to bob his head at a slow pace. He hallowed his cheeks as his lips glided up and down Stiles length. Stiles was moaning his name now and bucking up into the wet heat of his mouth. Derek brought a hand up to cup Stiles balls while he brought his mouth all the way down to the base of his dick, deep throating as much as he could.

"Crap Derek, I cant-" and he thrust up one more time before his entire body clenched and he released into Derek's mouth. He swallowed it all down, the convulsions of his throat making Stiles cum even more while his body jerked.

Derek pulled off with a pop as a trail of cum escaped his lips. His eyes were glowing bright red. He moved back up Stiles body, locking their lips once again. Stiles could taste himself on Derek's tongue which was more of a turn on then he'd thought it would be. He was already getting hard again. Derek lowered himself to Stiles stomach once again, this time though he pushed two fingers into stiles mouth and gave the command.

"Suck."

And Stiles did, lapping at the digits until they were completely covered in saliva. Derek pulled them from his mouth and started prodding at Stiles hole. He applied a little force and pushed one finger inside of him, causing Stiles whole body to go ridged from the new sensation. Derek grabbed the base of Stiles cock and started working his hand up and down the shaft to distract him while he pushed the second finger in. He started pumping them in and out, curling and uncurling them inside the boys body to elicit as many different sounds out of him as possible. Finally he added a third finger and felt as Stiles clenched down around them, coming again, this time all over his stomach and chest. Not loosing any hardness at all.

After a few more pumps of his hand and twists he pulled his finger out of Stiles causing the boy to let out a whimper in protest. It didn't matter, he would be screaming in pleasure soon enough. Since Werewolves didn't carry STD's he bypassed the use of a condom, but he still didn't have any lube. Instead he spit into his palm and rubbed his cock until it was decently slicked up. He lined his head up to Stiles hole, reached down and pulled the boy into a passionate kiss as he pushed his head in.

Wow, that was a lot bigger then three fingers. Stiles felt himself stretching around the head of Derek's cock. He hadn't realized how big it really was. Derek Stopped once the head was inside, giving Stiles time to adjust. Stiles gave him a quick nod and Derek thrust all the way in, bottoming out in the first go. It felt like he was being torn open but it was a good pain. Derek began to slowly shift, sliding in and out of Stiles a slow pace.

"Fuck Derek, just move already!" Stiles screamed out, and there was no way the rest of the pack hadn't heard that.

It must have thrown a switch in Derek's mind as he began to pound into Stiles hole. Hips snapping back and forth of their own accord, trying to get as much pleasure as they could. His mind was lost. He burried his head into Stiles neck, the boy wrapped his arms around his back, clawing at his shoulders, legs clenching around his waist. Every thrust was met with a moan and an intense burst of pleasure. Amazingly he was picking up even more speed, fucking into the boy at inhuman speed.

"You're tearing me in half, go damnit don't you dare stop" came Stiles command through horse pants and moans. He was bucking up to meet Derek's thrusts, trying to match Derek's pace.

They went on like this for what felt like hours, but was really only minutes. Derek fucking and Stiles clawing and screaming.

Stiles felt pressure starting to build at the base of Derek's dick. "Wha-whats that?" he groaned out between thrusts.

"S'my knot" Derek growled out. The pressure continued to grow, Derek started shortening his thrusts, his knot unable to exit Stiles. It started grinding into his prostate with every thrust sending sparks vibrating his entire body, it was too much.

"Derek, I'm not gonna last much more, fuck! " Stiles moaned out.

"Cum for me" came Derek's muffled reply from Stiles neck.

And he did, with one final upward thrust his was cumming hot strips all over the two of them. Derek was still pounding furiously into the boy, he felt Stiles whole body clamp down on his dick as Stiles came, pushing him over the edge to his own release. He clamped down on Stiles neck once again, this time with his fangs half out.

He felt Derek's whole body convulse as he emptied his load deep inside of his body, Derek suddenly sinking his teeth deep into his shoulder. He was lost in the intensity of the moment, the feeling of warmth filling him and the blinding hot pain of the bite causing his vision to go white while he screamed out Derek's name one last time.

As he came back down to his sense he could still feel Derek pumping into him, his knot tying them together. After 10 minutes he could tell the swelling was going down. He felt Derek pull out of him with a slick pop. He felt the cum dribbling out of his stretched hole. Derek rolled him over onto his side and pulled him in close to his chest while he licked at the new bite on his neck. He then slid two finger into Stiles hole to keep him from leaking all over the bed. Soon enough the boys breathing slowed down and evened out.

"T'ht was fnn" he mumbled out before falling asleep. Apparently Derek had broke his speech ability. He made a mental note of that.

Derek just chuckled and pulled the blanket over both of them, settling his head against Stile neck and drifting off to sleep against his lover.

Sorry for the delay...again. To make up for it i brought you sex, as prewarned. Again, sorry. I was originally going to end this with the blow job but then "push it" came on my ipod, and well...yups.

EDIT: as of today 11/20/12 the entire fic has been through edits. Including the mansex yes.