Disclaimer: I only own the plot.

A/N: So here's the next one! I know I only updated this fic yesterday but I want to get this finish to make up for the several month long hiatus :) So, yeah, here it is. M rated for a reason ;) Hope you enjoy it! Love ya!

Also, just quickly, the italics in this chapter are the flashback to last night. The normal writing is present time.

Anyway, enjoy!

...

Alec woke slowly, his body limp and sleepy, his eyes cracked open just a fraction, the light pouring in through the window where the curtains had been left open.

For a moment, he didn't recognise where he was, a feeling of panic was about to set in, when he turned to his right and saw that beautiful face sleeping soundly beside him.

He couldn't fight the blush that crept up his neck, spilling all over his entire face. But he smiled, because the memories of last night were more perfect than anything he had ever experienced.

Alec squirmed under Magnus' ministrations, the soft press of his lips following his hands as he pushed Alec's shirt up over his head. The gentle roughness of the shadow of his facial hair brushing his stomach made Alecs entire body tingle with anticipation.

Once Alec was shirtless, Magnus pulled away from him, standing up and smiling down at him before levelling the playing field. Alec's mouth went dry when Magnus dropped his shirt to the floor. He was staring with his lips parted at the flawless caramel, the toned musculature, the piercings in his hip and the silver nipple ring, the deep v of his hipbones and the trail of hair that disappeared into his skin tight jeans.

Alec had seen boys shirtless before. But Magnus wasn't a boy. He was all man.

Alec bit his lip, smiling at that memory, the way Magnus displayed himself, keeping it even to calm Alec's nerves and quell his shyness. Magnus managed to make him feel like more than just a stupid teenager, when Magnus touched him or kissed him or even simply looked at him, he felt like a man too; a strong, fearless, desirable man.

Alec reached over and brushed a stray price of red hair from Magnus' sleeping eyes, a mirror of what Magnus had done last night, right before he kissed him senseless.

Magnus swept Alecs messy hair from his magnificent eyes and smiled, cupping his face in his warm, tender hands.

"You are beautiful, Alexander."

Alec blushed deeply as Magnus smirked, chuckling at Alec's reaction before swooping back onto the couch, climbing on top of Alec and claiming the boy's lips for his own.

They kissed like it would be their last, like the world was ending. It was a sticky sweet symphony of lips and tongues, teeth and moans. Alec loved the fact that he seemed to affect Magnus just as much as Magnus did him.

They kissed for a while, the clock ticking in the background, counting down until Alec's birthday. Magnus pulled away from their kiss with a smile, kissing his way down Alecs neck, but leaving no visible marks; at least not there. However, Alec's chest was certainly the finest work of art ever created. Pale and perfect with a spattering of livid red marks, some bite marks, a lot of hickeys and a few nail scratches. Yes, Magnus made it perfectly clear even before they had sex that Alec was his and only his. Sue him.

Alec couldn't help the smile on his face as he looked under the covers, seeing that the red marks had faded to little bruises, a physical remnant of their night, and a temporary reminder that Magnus owned him, heart and soul.

He felt the bed move beneath him as Magnus rolled over, curling into Alec's side, am arm flopping over Alec's stomach. The boy laughed softly, stroking Magnus' face; in sleep, he looked younger, baby faced and innocent. Though innocent isn't a word he would have used last night.

"Come on. We're not doing this here. I think it's time i introduce you to my bed. After all, i do hope that you'll get to be such amazing friends."

Magnus winked as spoke with that smooth honey tone, letting the barest inch of lust fuel his insinuation. Alec understood the meaning immediately, blushing as he nodded, standing up and taking Magnus' hand.

"I hope so to."

He sang in Magnus' ear, kissing his neck before pulling Magnus with him, both of them stumbling to the master suite of Magnus' penthouse apartment.

As soon as they entered the room, Magnus slammed the door closed and swept Alec up in his arms, crossing the room in two strides, he placed Alec on the bed and began worshipping his young body. He conveyed his love with every kiss, his lust with every touch, his need with every gasped breath.

He slid Alecs ripped jeans off his legs, his boxers soon to follow, the air had been cold on Alecs flushed skin but Magnus' fleeting touches and kisses on every inch of his skin, every single inch, warmed him up faster than any heater ever could.

Magnus left Alec a panting, blithering mess on the bed, shaking and moaning, his head tossed back, one hand fisted in the sheets and the other tangled in Magnus' hair as the man slid Alec in and out of his mouth, licking and sucking, taking the whole damn thing like a pro. But Magnus stopped right before Alec could get his release, he pulled away and licked his lips, climbing off of his knees to stand at the foot of the bed, gazing through lust-blown eyes at Alec, sprawled out, quivering, legs spread wide, dick standing at full attention, flushed red and begging for it.

This is what they had both craved. This was it. This was what they had been waiting for. Magnus swooped down and kissed Alec softly, their swollen lips pressed together, in fact, it was less a kiss than it was them just harshly breathing, panting into each other's mouths. They both needed this.

So Magnus pulled away and slid his belt from its loops, peeling the skin tight material off his hips, his thighs, his knees, down and down until they hit the floor with a light thud.

Alec moaned under his breath, his couldn't help it. Just the sight of Magnus standing there in the moonlight, wearing nothing but his tight briefs was enough to make Alec want to cum. He licked his lips, looking down at Magnus' sleeping face and he wondered how someone could go from adorably cute to downright fucking holy-mother-of-God I'm gonna die sexy beast alert! It was insane. But he liked it.

He liked it very much.

So much that he could feel himself grow hard under the covers and he cursed himself for getting too caught up in his memories.

But, in his defence, it was one hell of a memory.

Magnus hooked his fingers into his briefs, about to pull them down when Alec stopped him.

"No. I want to do it."

Alec rasped, biting his lips and peering up at Magnus through his lashes. That look alone was enough to drag a deep moan from Magnus' throat, he lunged forwards and attacked Alec's mouth, almost sucking out his soul.

"God, Alexander. How do you do this me, baby?"

Alec had no answer, his only licked at Magnus' lips, dragging his nails down Magnus' chest. The man growled, honest to god, growled. And it turned Alec on so much more if that was even possible.

When he reached Magnus' waistband, his hooked his fingers into it, flirting with the skin of Magnus' hips. It was hot and smooth and Alec felt the sudden urge to lick the light sheen of sweat off of it. But he didn't, he did lean forwards and kiss the v of his hips though, then he pushed them down Magnus' legs until they hit the ground.

Again, Alec lost his mind, his mouth going dry.

Magnus was just so... big. So hard and red and leaking and all for Alecs taking. The man looked at him, waiting for Alec to make a move, wanting this to be Alec's choice. That was important, he couldn't do anything that might not want to do. He had to be sure.

And he was.

So, licking his lips, Alec crawled closer, gripping Magnus' hips and looking down at it. He knew the basic principal but he'd never put it into practice before.

Until now.

Alec burrowed deep into the covers, hiding from his blushing face. He laughed to himself in bewilderment, he couldn't believe that he had done that, he had gone at it like a whore, taking all of it, moaning, groaning, licking, sucking, and swallowing like it was favourite thing in the whole world.

And to honest, it was. Looking up at Magnus, watching his face contort in pleasure, seeing his body shake, feeling the man's hands fist in his hair, thrusting his hips despite trying to keep still and not choke Alec too much. But Alec had loved it, Magnus basically fucking his face. It was dirty and hot and messy and perfect.

Alec licked his lips as he buried himself under the covers, biting his lip and holding back a moan. Beside him, Magnus had pushed against him closer, a smile on his face.

Magnus smiled down at him.

"Stop baby... I don't want to end this too early, there's still a few minutes to midnight."

Alec released Magnus' dick, unable to resist giving it one last lick along the underside. Magnus moaned, pulling Alec up as he leaned down to shower him in wild kisses.

They fell back on the bed, rolling around, the sheet falling off the bed as Alec pinned Magnus down, thrusting his tongue into Magnus' mouth, flicking it around, drawing moaning from his man. Magnus wrapped his legs around Alec's waist, bucking his hips up, crying out as Alecs hip have beautiful friction to his dick. Alec rutted against him fast, his teenage rock star stamina making him go for as long as he wanted.

Magnus tangled his hands in Alec's sweaty hair, as Alec yanked his head backwards, sucking on Magnus' neck like he did with his dick. Magnus panted in Alec ear, moaning incoherent words and crying profanities.

He then rolled them over, Alec squealing in surprise at Magnus' ninja move. Magnus laughed, stroking Alec face as he pushed himself up on all fours, nuzzling his face in Alec's neck.

"You are so cute." Kiss. "And perfect." Lick. "And hot." Kiss. "And sexy." Bite. "And amazing." Kiss. "And mine."

He whispered roughly, tugging with his teeth on Alec's earlobe. Alec cried out, bucking up against Magnus' groin.

"Magnus... Please... It's nearly midnight. Like, 3 minutes."

Magnus pulled back and looked at the clock.

"Oh yeah. Whatever shall we do? What. To. Do. To. You?"

He asked playfully, smirking as Alec bit his lip and spread his legs, laying himself out for Magnus' taking.

"Just... Fuck me."

Magnus' smirk widened and he bit his lip.

"With pleasure, baby boy."

Alec smiled, remembering that look on Magnus' face, the smile, the lust, the love. It was perfect. He wanted to see it again. Over and over.

He rolled onto his side, gazing at Magnus' face, jumping a little when those amazing eyes snapped open.

"Hey, baby boy."

Magnus whispered, leaning in straight away to devour Alec with a kiss to end all kisses. Needless to say, Alec's slight problem from his memories just got so much worse. Or better, depending on which way you look at it.

"Hey, Magnus."

Alec replied sometime later, licking his lips. Magnus smiled, pulling him closer then smirking when he felt a hardness press against his thigh.

"My, my, what's bought this on, i wonder?"

Alec blushed, burrowing into the covers as Magnus laughed. But his laugh was laced with lust, just like it had been last night.

It was one minute to midnight. And they had a shared idea, scrabbling around quickly, laughing as Alec got his legs stuck in the corner of the sheet that had fallen from the bed.

Alec hit his arm playfully and giggled. Magnus nuzzled their noses together in an Eskimo kiss as he positioned Alec beneath him. His spread Alecs legs, kneeling between them, reaching out to grab the necessities. He covered his fingers in lube and pressed against Alec's entrance.

"Are you sure, baby?"

Alec smiled and nodded, wrapping his arms around his man.

"Yes. Just do it already."

Magnus nodded, smiling.

"Well, can't argue with that."

And he slid his fingers inside. Alec moaned, the pain a hot flare through him, but Magnus kissed and touched and stroked it all away, and when Magnus' fingers brushed against that spot inside and Alec screamed in pleasure.

Magnus grinned at him, pulling the covers from over his head.

"Oh, baby, don't hide. You have nothing to hide. I saw everything there is to see, remember?"

Alec moaned his retort indignantly. "I do remember! That's the fucking problem!"

Magnus cackled. "The fucking problem? Nicely done, Lightwood."

He dissolved into laughter and Alec couldn't help but join in. Soon enough, they were out of breath, huddled together.

"Hi."

Magnus whispered when they were so close that their lips almost touched.

"Hey."

Alec replied, leaning in to Magnus' touch as the man stroked his cheek softly.

"Happy birthday, Alexander."

He whispered before claiming Alec's lips for his own all over again.

"Its 1 minute to midnight. 1 midnight until you turn 16."

Alec grinned as Magnus placed Alec's legs around his waist, lining himself up.

"Then get on with it."

Magnus smirked and held Alecs hands either side of the boys head.

"Yes, sir."

Alec giggled and they kissed each other greedily, as Magnus started to push inside. Alec gasped in pain but Magnus held him through it, whispering sweet nothings in his ear, as he showered him in kisses.

And just as the clock beeped, signalling the turn of midnight, Magnus slid in the final inch and their bodies connected completely.

Alec cried out when Magnus hit his prostate dead on, and the man stayed still for a second, letting him adjust.

"Happy birthday, Alexander."

Then Magnus moved, gaining rhythm and speed, moaning as Alecs perfect body wrapped around him, swallowing him greedily. Alec started moving with him, bucking his hips as Magnus thrusted deep inside him, building up the pressure and fucking him harder with every second.

"Oh my god, Magnus! MAGNUS! Oh, it's- I'm- I- Oh, god."

Alec cried, his words not really making sense but spurring Magnus on. The man held him tighter, their mouths colliding, Alec's legs tightening around his waist.

"Alexander... Baby... Holy fuck. You're so- So... damn, you're perfect. I'm so lucky. God, i love you."

He rammed into Alec with wanton abandon, changing his angles to keep it going, to stop Alec from falling over the edge too quickly.

"I love you, too. God, Magnus... I love YOU!"

He screamed as Magnus nailed his prostate, thrusting hard against it, knowing that Alec was close.

"Cum, baby. Let go. Cum for me. Now Alec!"

He panted and gasped, willing Alec to let go. And let go, he did. Magnus watched as his boy came, all over their chests, head thrown back and shuddering, tightening around Magnus, dragging the man over the age with him.

They lay in silence afterwards, trying to catch their breath. Magnus pulled out and discarded of his condom, then he cleaning them up and pulled Alec close, kissing him breathless.

"I love you."

Magnus whispered.

"I love you, too."

Alec replied sleepily, smiling with a blush on his cheeks. Magnus kissed him one final time, before settling them down in a cuddle.

"Sleep now, baby. It's nearly 1. You need your rest for the party later."

Alec smiled.

"Ok. I love you, Magnus."

The last thing he heard was Magnus whispering his reply, as he drifted off to sleep.

"I love you more, my beautiful angel."

...

A/N: So? Let me know what you thought in a review, guys! I love hearing from you and reviews/faves/follows make me write faster :p

Also, if you didn't already know… THE SHADOWHUNTERS CAST ARE BACK IN TORONTO! SEASON 2 IS A GO! FINALLY!