A/N: Whoops, I forgot to cross-post this thing. It was just a quick, short piece I scribbled out for Clack day. The most impressive thing about it is that I was abroad at the time and had to type the whole thing up on mobile. I hate typing on mobile. But I love Clack smut more than I hate typing on mobile, I guess, so here ya go.

Anon prompt from Tumblr: "Clack with lots of marking / comeplay?"

In case the prompt isn't enough of a heads up, this one is a total PWP and entirely NSFW.

"Zack, nng, please," Cloud moaned weakly. He was close to senseless, near out of his mind with pleasure as Zack rolled his hips and took Cloud over and over again.

They'd been going at it all evening, and well into the night now. Trying to keep up with Zack's SOLDIER stamina was the most blissful kind of torture.

"Please what?" Zack murmured sweetly, even though his voice was every bit as low and wrecked as Cloud's. "Just tell me. Anything you want, Cloud, I'll give it to you." It was a promise, and Cloud didn't doubt him. Zack had always been so good - too damn good - at putting Cloud's pleasure first.

"Zack! " Cloud cried out. He tossed his head back, eyes closed tight. Gaia, there, right there, fuck.

Zack mouthed along Cloud's exposed throat, teeth grazing over all the little bruises and lovebites he'd already left. Cloud threaded his fingers through Zack's hair - keeping him there, not pushing away.

"Please. Mark me."

"Mm, you like that?" Zack said. Stupid question. He already knew it drove Cloud wild.

He gently tilted Cloud's head back further, finding a sensitive little area of skin to nuzzle against and mark.

"Yeah," Cloud breathed.

He was already covered in hickeys; a collar of them around his neck, scattered all over his chest and between his thighs. His stomach was spattered with the evidence of his release - both his and Zack's, from more than one orgasm but Cloud had lost the ability to count exactly how many a long time ago - and even more of it was smeared between his ass cheeks and dribbling down his thighs. There were fingerprint-shaped bruises on his hips.

He felt fucking claimed . And yeah, he loved it.

It wasn't like Zack had escaped unscathed either. He had his fair share of cum drying over his abs and chest, and on his hands where he'd been toying with the mess all over Cloud just to get him off even more. And the scratches. Deep and angry red - just for five minutes before they started to heal up - all over his back. Cloud could get… very enthusiastic in bed, wrapping himself around Zack and clawing at him as he writhed in pleasure. So gorgeous. Zack wouldn't have it any other way.

He leaned down to capture Cloud's lips again, pink and swollen from countless bruising kisses they'd already shared. He wasn't going to last much longer, not with his perfect, beloved Cloud arching beneath him, so hot and tight and trembling around Zack's cock, kissing back like his life depended on it.

"Come inside me. Zack, please, I wanna feel it…"

The sound Zack made was somewhere between a low laugh and a growl. "You filthy little pervert. Begging to be filled up like that."

It was the dirtiest, sexiest thing. Did Cloud know how much Zack loved him?

"Please."

Cloud clenched down around him, far more deliberately than would have been expected from his glassy eyes and all-fucked-out expression. Zack swore.

"F-fuck, Cloud, you feel so good."

"Please. "

Maybe Cloud had Zack wrapped around his little finger, but he really didn't care. If his boyfriend wanted him to use his ass and fill him up, who was Zack to argue?

Zack groaned, letting his forehead rest against Cloud's as he arched above him, slamming home one last time. He was as deep as he could possibly get in Cloud's body, shooting his load out inside him as he came.

Cloud groaned as well, face flushed and squirming with lust. Gaia, fuck . It made him feel so filthy, being marked from the inside, filled up with cum; but it was Zack who was doing it, and that made it a pure turn-on.

"Zack, Zack," Cloud choked out, near desperate now. He was so hard, so close, absolutely aching with need.

Zack let his softened cock slide free of Cloud - his eyes dropped to Cloud's reddened, used hole, watching the thick trail of his cum leak out. Fuck. Cloud was so gorgeous.

"Zack. "

"Come on, then," Zack encouraged him, voice rough. He curled two fingers into Cloud, knowing just where to rub to have Cloud writhing and screaming. "Gaia… there's so much cum in here," he sighed, knowing exactly what the words would do. He finger-fucked Cloud, fast and hard enough to satisfy his lover - the wet, filthy noises of Cloud's cum-soaked hole being used like that just made it all the better.

Cloud gave a full-bodied shudder, not even needing his cock touched to come. But Zack gave him a hand anyway, reaching down and stroking Cloud through his orgasm.

He couldn't resist leaving one last hickey on Cloud's collarbone at the same time.

Then it was over, and Cloud moaned softly as he sank back down into the bed. He looked the very picture of a dishevelled, used mess; blond spikes damp with sweat and in complete disarray, covered in bite marks and bruises and cum. He was trembling and panting in the aftermath, utterly boneless.

Zack collapsed down beside him, not in a much better state himself.

"Gaia," he groaned. "Cloud. That was… so fucking good. You're so amazing. I fucking love you."

"You fucking love me, or you love fucking me?" Apparently there was no such thing as being too exhausted to sass.

Zack gave Cloud a shit-eating grin . "Both."

Cloud laughed and nudged his head against Zack's in a gesture of affection, too fucked out to move any more than that. "Yeah, well. I fucking love you too."