Work Text:
Arthur ran up the last few steps to their apartment, ready to chug some water and shower after his vigorous run.
He makes it as far as the kitchen sink to fill a glass with water before a naked Merlin has plastered himself to his sweaty back, running his hands over Arthur’s bare back and pressing his hard cock into his behind.
Merlin tried to explain it to him once - his utter horniess for Arthur directly after a workout - saying something about “shirtless,” “sweaty” and “all out of breath like you’ve just cum.” Not that Arthur really needed the explanation, he greatly looks forward to these romps when he knows Merlin is home - and he may or may not have planned workouts in the past to make sure he would be when he got back.
“Mmm, I haven’t had my workout yet today babe, mind spotting me?” Merlin murmurs against his ear before nipping at it, toying with the waistband of his shorts.
“I suppose I could help you warm up,” he sighs before smiling, reaching a hand into Merlin’s hair as his lips attach to his neck.
Merlin turns them around to bend Arthur over the kitchen island, his face pressing into the cool marble surface.
Merlin makes quick work of Arthur’s shorts and gives each ass cheek a loud smack, making his legs tremble in anticipation every time his hand comes down.
Spreading Arthur's legs, he slips two fingers between his cheeks to press against his hole, finding it already slick and welcoming. Merlin grins, groaning low in his throat - Arthur had anticipated the ambush and worked himself open before going on his run. The thought sent a shiver up his spine before he removed his fingers and gave himself a cursory stroke, cock still wet from the lube he had been using on himself while waiting for Arthur to get home.
He teases the head of his cock against Arthur’s hole, making him moan lightly and wiggle his hips back towards him.
“Eagar, are we?” Merlin chuckles. He doesn’t wait for an answer before pressing in fully.
Arthur lets out a moan that matches Merlin’s own as he bottoms out, grabbing his hips for leverage as he begins to pound into him.
The kitchen is filled with the sounds of their moans and skin slapping against skin as he relentlessly fucks into Arthur’s wet heat and continues to bring his hands down on his ass cheeks, making them sting.
He lets out a shriek after a particularly hard spank.
“You like that baby? Let me hear you more,” he growls out before pulling Arthur up to his chest, holding him in place with a hand around his throat and an arm around his waist.
His thrusts don’t let up with the new angle. The arm around Arthur’s waist goes to his cock, stripping it in time with Merlin’s hips. Arthur moans wantonly and loudly, his legs beginning to shake with pleasure as his hands scramble to grasp anywhere on Merlin they can reach.
“Yeah, let me hear you baby,” he demands, the hand on Arthur’s cock squeezing tighter.
Arthur lets out a loud moan, fingers scratching over Merlin’s arms as his orgasm builds.
“Louder,” Merlin says in his ear, the hand on his throat flexing.
Arthur begins to whine loudly. “Mer... Merlin. Baby, please,” he cries.
His cries spur Merlin on further, thrusting into him harder as he pushes him back down onto the counter, abandoning his cock and throat to grasp his hips again.
Arthur lets out a string of curses as he begins to feel his body seize, clenching down on Merlin in warning.
“Oooh yes, fucking cum for me babe!” he moans.
Arthur lets out his own guttural moan as he comes, his eyes rolling into the back of his head as his orgasm washes over him.
Merlin’s moans begin to get increasingly louder, his thrusts more erratic. Within seconds he slams into Arthur one last time, burying his cock before spilling deep in his channel. Arthur groans happily at the sensation, his legs feeling wobbly as the last of his orgasm courses through him.
Merlin pants above him, hands touching his back gently before laying one last smack on his ass and gently pulling out. Arthur gasps in surprise and lets out a laugh as his legs finally give out. Merlin barely catches him around the waist before he hits the floor, letting him down gently. They both end up leaning against the cabinets, facing each other and catching their breath.
They lock eyes after a moment, unable to help the wide smiles and chuckles that spread across their faces.
“I’m going to go shower,” Arthur announces, grabbing Merlin’s hand and kissing the back of it before pulling himself up slowly.
“Can I join you?” Merlin asks after a moment, smirking up at him.
Arthur starts walking towards the bathroom, throwing him a coy look over his shoulder and shaking his reddened buttocks at him.
In a flash Merlin’s on his feet, chasing after him as their laughter rings throughout the apartment.