A\N: So... I'm back again. It's soon, I know. Those two can't really leave me alone, I swear!
Hope you enjoy, that's all I have to say.
Actually, it's not.
DISCLAIMER: our Queen Cassandra Clare owns this. Sigh.

"Oh, yes, good man! Good just like that..." Alec furrowed his brows. What the hell was Magnus doing? "Please? For me?" At that Alec sped to the living room, only to find his boyfriend playing with the Chairman Meow on the floor.
"Magnus, what are you doing to that poor cat?" Magnus turned, grinning like a madman, and let go of the cat, who ran into another room, hissing.
"Oh." Magnus' grin disappeared at that, and he pouted at Alec. "You made him run. And we were only playing, anyway. It's not fair. You spoiled all the fun." he lamented, crossing his arms across his chest, looking down. Alec couldn't help but grin at Magnus's childish behavior, and got closer to the warlock.
"It didn't sound like you were only playing, mind you," he said, in a fake reproachful tone, "and besides, you've got me, what else do you need?" he joked seductively.
"You weren't here forty-five minutes ago when I was dead bored, and turned to the Chairman for fun, mind you." Magnus mocked.
"Oh, c'mon! I'm gonna make it up to you, I promise." they both grinned at that, and Alec hauled the warlock to his feet.
"And how do you plan on doing that, exactly?" Magnus drawled, voice low.
Alec smirked, and got closer to his boyfriend, and whispered "Catch me," in the warlock's ear. And ran.
Oh yeah? You wanna play this game, Alexander? Well, too bad," Magnus said, narrowing his eyes and cocking his head to the side, "'cause I'm faster." He finished, appearing in front of a stunned shadowhunter, cornering him against a door. Alec recovered quickly though, and put a hand on Magnus' chest.
"You might be faster, and that's all thanks to magic," he reckoned gruffly, while his hand was trailing up to the warlock's neck, and then to his spiked hair, "but I'm shorter. And more distracting." He added winking, sliding under his boyfriend's arm. And then he was gone.
"Alec, dammit! It's not fair!" Magnus complained, still glaring at the door, "You said you were going to make it up to me!"
"Well, I am, only if you play fair."
"How am I supposed to do that? I'm a slug!"
"It ain't my problem!" Alec sing-sang.
"Ha. Ha. Ha. You're so funny. You crack me up every time you open your mouth."
"I know, Magnus. But don't praise me so often, honey... I might overestimate myself, you see." The warlock hided an affectionate smile.
"I'm so gonna get you now!" Magnus heard Alec laugh, and he ran toward the source of the noise.
"Oh, there you are. I was wondering where you hided; I didn't think you'd be so... explicit, though." he said, arching an eyebrow at the sight of the shadowhunter, who was wearing only his briefs, and raking his eyes up and down at the rather uncovered boy.
"I thought you'd enjoy the view, you know." Alec answered suggestively.
"I do, actually." Magnus said, gulping, voice unstable.
"What are you waiting for, then? C'mere and get me" the boy whispered, wiggling his eyebrows.
"God, Alec, you're such a perv!"
"I know, and that's why you love me, right?" Magnus sighed, and with a smirk, he got over Alec in a second.
"Thinking of escaping? Not happening, sweetie." the warlock whispered in his boyfriend's ear, then placing his lips on the shadowhunter's neck.
Alec moaned, and rotated his hips, smiling when a surprised Magnus took his weight off him, and used the occasion to flip the warlock on his back, positioning himself over him.
"Actually, yes." he said, leaving a light peck on his boyfriend's lips, and disappeared quickly behind the door.
"God, you're such a tease." Magnus moaned, raking his nails in his hair. "You're gonna pay for that, Alexander Lightwood!" he shouted loudly.
"Try me!" said Alexander Lightwood shouted back.
"You're such a child! You could give your ol' man some satisfaction, every once in a while!"
"I give you satisfaction every fucking night, so stop complaining, old man!"
"It's true that we have sex every night, but that doesn't mean that you always satisfy me, you know."
"WHAT? You daresay I'm not good in bed? You- I'll show you!"
An outraged Alec darted into the room, and flung himself at Magnus, kissing him ravenously, and doing all the sort of things that drove the warlock crazy with need.
Yes. 'Cause of course, he was joking. Alec was a god in bed.
If you want to get something from someone, the warlock thought lazily and somewhat satisfied with himself between a wave of pleasure and the other, tell them that they're not good at it... Pride really is man's worst flaw.

As you may have noticed, Alec is extremelyOOC. All Magnus' fault, I say. I mean, this story was going in a complete different direction, before he took over. That's also the reason for that ridiculously Gandalf\Dumbledore\Yoda\Aslan\Angel Raziel-like final sentence. All. Magnus'. Fault.
Anyway, I hope you'll be kind enough to leave a review... Thanks.