Disclaimer: teen wolf does not belong to me - this next wee chapter is a little different that it's more from isaacs POV with stayla side action and because it's Isaac listening in to them it's not like tame smut - he's a teenage guy tryna to get off, he has a filthy vocabulary and imagination just to warn you ha, plus he kinda had the hots for kayla at this point so yeah, just a warning ha but hope you enjoy none the less :)

He promised himself he wouldn't do this again, that when his friends were getting it on he would stick some ear buds in and blast some music to distract himself but they just happened to start getting frisky just as he was watching some porn on his laptop. And by porn he meant the X-rated kind that was by no means gentle.

He heard them make their way up the stairs loudly, clothes being torn off roughly and it seemed he wasn't the only one in the mood for the rough stuff.

But he had promised himself that he would stop listening in, that he would stop fantasising about his best friend in all these different sex positions because she had a boyfriend and was definitely not interested in him but he couldn't help it - especially when he could hear, in perfect clarity, her getting all hot and bothered on the other side of the wall.

He pushed his laptop to one side, closing the lid and discarding it, hand stilling around his erect cock as he strained his ears, listening to Stiles slam her back against the wall needily, grabbing at the skin he wanted to grab before pushing her roughy on the bed.

Damn.

Nope. Sorry. He couldn't do it. His self control was nearly non existent, letting out a resound sigh as he pushed himself back against the headboard, slowly stroking his cock to a steady rhythm as their moans and groans heightened, breathless gasps escaping their lips.

Was it so bad he wanted to be in Stiles' situation?
Yes it probably was but he was too horny to care right now, tightening his grip as he screwed his eyes shut and focused on the sounds they made, picturing perfectly everything they were doing.

"I'm gonna fuck you so hard" Stiles promised huskily, pinning her to the bed by hooking his arms underneath her knee joints, "Jesus Christ Kaylz"

Isaac blew out a long breath, holding back his own groan as he heard Stiles grind against her, their slick bodies meeting sensually and stuttered out a refrained growl at Kayla's desperate whimper, nails clawing at Stiles' skin.

God, what he would give right now for it to be his skin she was scratching at until it bled, his hormones outta control.

His hand sped up a little, jerking the tip of his flushed cock off, clenching the bedsheets underneath as his lower stomach tightened as he listened to Stiles whisper dirty things in her ear, things that even he couldn't repeat as it made him blush before sinking into her, both moaning at the sensation.

He had heard them have sex many times before but this time was different - it was pure frantic desire, Stiles bending her legs he wanted, keeping her pinned on her back as he started to thrust into her relentlessly, powerful lean hips slamming between her spread legs, completely wrecking her to the point she couldn't breathe.

"Fuck Stiles... Oh god baby, don't stop" he heard her moan, the bed rocking back and forth and hitting the wall and Isaac tried to groan quietly, tugging on his cock and imagining it was him on top of her, fucking her exactly like that, just the way she liked until she was screaming his name over and over - not Stiles'.

He was rock hard and aching for a release, screwing his eyes shut as he sat up in his bed, listening in to everything they were doing, picturing perfectly the position they were in - Stiles on top, his arms hooked around her knees joints with her legs spread wide open and ready for him to pound ruthlessly - hell he could hear the wet sounds their bodies made, the rough slapping of skin, every single little noise of pleasure. Only in his mind it was him looking down at her as he fucked her, skin against skin, his cock sliding so fucking deep inside her sweet wet warmth that he could just imagine was so damn tight, her pussy no doubt feeling like heaven around him. Fuck.

He sped up his hand, jerking roughly at his cock as he pictured what it would look like - spreading her swollen lips, licking at her clit, watching it flush and swell and leak and drip with cum, God he could near enough taste it, yearning for it more than anything.

Yeah, a best friend definitely wasn't supposed to be thinking this about his other best friend but he found himself not caring, groaning under his breath as his cock twitched and he knew immediately this was going to be a big load. Jesus Christ, a big thick load that he wanted to squirt in her and watch patiently as it dripped out.

"Oh god... Oh god, right there... Fuck" she was near enough screaming in ecstasy and he screwed his eyes shut, picturing those perfect bouncy tits of her jerking about, imagining putting his mouth around them, biting until her nipples hardened like ice and sucking on them until he couldn't breathe.

"Yeah baby, you fucking scream" he heard Stiles grunt, "scream my fucking name"

"Fuck Stiles... Stiles yes. Oh god, faster Stiles-"

Isaac. She was saying Isaac, he thought to himself as he tightened his hand around his throbbing cock, watching some precum spill out the top of his slit and slowly trail down his cock, his other hand reaching down between his legs to fondle his balls, massaging them harshly in his grip as he ached to feel her expert tongue on them, playing with them, sucking on them, doing anything and everything dirty to his willing body.

"Cum for me baby" Stiles demanded, "my cock wants you to cum so fucking bad"

Isaac groaned as he heard Stiles speed up, hearing the sounds of his cock as it forced its way into her tight wet pussy, her legs spread, core no doubt red raw by this point and Isaac gasped as his stomach tightened, listening to those beautiful alluring moans leave her lips.

"That's right baby" Isaac whispered to himself, picturing her below him in complete mind blowing pleasure, "give it to me"

"Stiles... Stiles I'm-I'm gonna... I'm cumming - oh gooooooooodddddddd-"

Isaac jerked quicker at his rock hard cock, the loud fapping sounds filling up the room as he quickly spat in his hand, lubing up his clammy grip before continuing to tug and work his cock as she let out a long, drawn out scream which dissolved into a beautiful moan, his relentless grip tightening around his twitching length as he imagined that perfect slick wet pussy tightening around him, tugging him into her delicious warmth and couldn't stop his groan as his cock twitched, squirting streams of thick white cum all over his bare stomach and chest.

Fuck, it was a big load, still shooting lines across his pecs and knew damn well fine how perfect it would look inside her. Damn, now he couldn't get that image out of his head, sighing loudly as he loosened his grip and banged his head back against the headboard in exhaustion.

Not that he had seen female anatomy up close and 'in the flesh' so to speak, but he had watched things and, in his post sex bliss, really did want nothing more than to watch his cum fill her up, like he was marking her.

He really shouldn't have been listening in but he couldn't help himself. They were just next door, plus they got it on all the bloody time. It made him horny, what could he say?

He heard Stiles grunt as he collapsed on top of her, his own arousal soaking her through as he started pressing wet kisses along her neck as Kayla suddenly started laughing, Stiles following soon after as they kissed and laughed and smiled where as Isaac was left to just clean himself up with some tissues, wiping away the cum off his chest and throw the used tissues in the trash can across the room.

Wow, what a sad life he led, jerking off to his friends having sex. He really needed to get over his screwed up feelings a.s.a.p. Like now.

He sighed heavily, trying to tune out their lovey-doveyness from through the wall as he pulled on his pants, leaning him bare chested as he tidied up his room a little, at least until he heard stiles say something about him having still got his favourite comic book and he wanted it back, giving Kayla a quick kiss saying to her he would sneak in his room and grab it before he got back.

Right, because he wasn't supposed to be here. No one was, hence why they got it on so damn loudly. He panicked, seriously debating jumping head first out the window but before he could even move he heard Kayla say she would do it, slinging on one of Stiles' shirt and pad down the hallway and he was still frozen in place in the middle of his room as Kayla walked in, stopping short when she saw him there half naked, her own state of undress blatantly obvious, especially when only a few of the buttons were tied up and he tried desperately not to look at her cleavage but the swell of her breasts were blatantly obvious, slipping out past the untied shirt.

"Uh... This so isn't what it looks like" he flushed red, "I uh... I just got back"

Her eyes widened in surprise, glancing down at his chest before looking at the unmade bed and the box of tissues on the bedside table, eying up the used tissues in the trashcan and met his stare again, a playful smirk tugging on her lips.

"I'm guessing you liked what you heard?" not embarassed by her state of undress and making no move to cover herself up.

"Oh god..." He whispered in mortification, "I am so sorry-"

"Jeez, relax Isaac" she rolled her eyes playfully, leaning sideways to grab the comic from the computer desk and he desperately tried not to eye up the way the shirt rode up her thighs but couldn't help himself, seeing that perfect rounded ass he knew would be the perfect handful to grab, "jerk off all you want, I couldn't care less. Plus it's supposed to be healthy. Masturbation saves lives you know" She joked, totally not looking fazed by anything, "glad we could help at any rate"

"Holy god"

"You're welcome to listen in whenever you want" she offered, shrugging lightly as she backtracked to the door, "in fact, we're probably going to do round two any minute now and just for you I'll even add in some dirty talk. Hey-" she winked, throwing him a dazzling smile, "-what are best friends for right?"

A/N) even I'm still amazed at Kaylas lack of shame, I'm shook haha anyway a little something different but I hope it was stil okay, please please leave your thoughts and I shall see you soon peeps x