It starts as a tease, the sort of words said during the heady rush of pleasure. Zhongli drags a hand down Childe's side, taking in the sight of him.
Childe squirms under the touch. "More," he begs, arching from the bed, trying to gain friction. He wants every square inch of Zhongli touching his own.
"Impatient." Zhongli chuckles, tucking his face into Childe's neck, inhaling deeply. Sharp teeth drag over the skin there, nipping a small mark but never quite sinking in.
"I want—"
"Mhm, I know what you want." Zhongli kisses his neck, the sharp curve of his jaw, the sensitive spot right underneath his ear. Childe shivers as those teeth drag across his skin. He moans, curling an arm around Zhongli's neck, clinging. Zhongli chuckles, nuzzling his warm skin.
His fingers drop to circle around Childe's cock, thumb and forefinger in a loose grip. "I should cage you. Lock you up while I make love to you, dragging those sweet sounds from your mouth as you drown in nothing but my touch."
Childe burns at the thought of it, the way that Zhongli's fingertips skip over his skin as he thinks about it. He coaxes Childe's dick just to hardness then tightens his fingers, choking off the pleasure flooding through his core.
"Zhongli—"
"Look at you," he says sweetly, those fingers loosening again, watching Childe's dick twitch in his grasp. "So good for me. So—"
"Do it." Zhongli blinks, tilting his head to the side. Childe lays back in their bed, chest heaving, blood on fire as his dick flares to life again. "Go on, do it."
Zhongli's nostrils flare as he thinks about it. He holds Childe's cock in his hand as he considers, that soft little crease that he sometimes gets tugging the spot between his brows. Golden eyes blaze in the dark of their room. "Ajax—"
"Please. I—" Childe groans softly. "Shit, I want you to."
That's all that Zhongli needs to hear. His hand moves, Geo glowing in his palm, encasing Childe's length in a loose cage of glittering Cor Lapis. It's slick enough from spit and precome to not chafe. There is just enough room to allow his cock to swell—but not for complete relief.
"Pretty," murmurs Zhongli, pulling his hand away, watching Childe's cock harden as much as it can. He presses a thumb between the bars to rub at the soft, silken skin, pulling a punched moan from Childe's throat.
It is a strange sensation. Only mildly satisfying, just this side of good. He moans, not in pain, but dissatisfaction as he rolls his hips, trying to get more friction, more something. Childe doesn't really know what.
Zhongli's fingers trail across his down. Through the crease of the skin at his hip, down the swell of Childe's balls. Childe's head falls back against the pillow. The soft touch pulls at him, needles him, makes his cock twitch—and then nothing else.
He groans, his gut clenching. Nearly there, nearly there— "Zhongli," he whines, planting his hips against the mattress.
Zhongli chuckles, squeezing Childe's balls, weighing them in his palm as his other hand moves to brush knuckles against the smooth expanse of his perineum.
"Oh, oh—" Another choked-off grunt as Childe kicks a foot against the sheets in frustration.
"Are you okay?"
"Yes." Childe hisses it.
"Do you want to stop—"
"No—Just, gods, more please."
Zhongli hums as he muses, that dragging touch lingering on Childe's heated skin. "Glutton for punishment? Can't say that I dislike you like this, entirely prone and at my whims. So handsome, so—"
"Zhongli."
"Yes, yes, alright."
He's quick to circle Childe's rim with a slicked finger before slipping it in, right to the knuckle. Childe keens, tightening around the intrusion, his cock twitching pathetically as it tries and fails to harden. It's halfway there, pinked, aching. Nearly, nearly—
Another finger has Childe crying out, meeting Zhongli's hand. "Fuck," murmurs Childe, hips rolling, seeking out whatever pleasure he can find. Precome dribbles from the tip of his cock and it hurts—but in a deep-seated way that just drags the pleasure out.
Oversensitive. Over-burdened. Childe whines, writhing about in the sheets, fucking against Zhongli's fingers that spread him wide. Childe can feel how his rim stretches, how his cock begs to thicken, just barely cut off from the true height of pleasure.
Zhongli's fingers sweep over his prostate, pressing against it, milking the bundle until Childe is a mess in the sheets. "Oh gods, oh—Fuck, fuck—" He's close, he's so, so, close, he's right there. His cock throbs, pinned in the cage as it slicks the Cor Lapis with the precome it leaks.
"Good?" asks Zhongli. He teases him so cruelly, trying to drag an orgasm out when he knows that Childe can't get an erection. "Close?"
"Yes, I'm—Zhongli, I'm, I'm—fuck me, please."
Zhongli's fingers pause. He leans him close to bite at his neck, canines digging into his skin just deep enough to mark. "Say it again. You beg so prettily for me."
"Please, fuck me. Please." Childe whines at the loss of his fingers. His breath hitches when Zhongli settles between his legs, a heavy, comforting weight. His thighs are pressed back for Zhongli to take a look, and Childe feels his hole clench underneath the pointed gaze.
"So perfect for me," says Zhongli, sweeping a thumb through his slick, loose hole. Then up, dragging across the length of the cock cage, Childe's length tensing underneath the gentle touch.
Childe cries out when Zhongli presses in a little too quickly, too eager. Zhongli's cock is thick in his ass, pulling at his insides as he fucks right in, the stretch stinging as he just slips further inside.
"Oh gods," hisses Childe, melting into the sheets. "Oh, oh, Zhongli."
Zhongli grunts, hooking his legs over his arms. He fucks into Childe with languid, rolling thrusts that seem to sink deep into his guts. Tears prick the corner of Childe's eyes under the pressure. His cock twitches, trying to harden, to fatten up before being pinched by the cage.
"Gorgeous." Zhongli's eyes seem wild. He licks at his lips as he leans over Childe, watching the way his ass is split open around him. How his cock sinks in until his hips are flush with Childe's cheeks, sweat-slick skin slapping in the sordid nature of their love-making.
Wholly debauched. Childe lazes in the haze of nearly-there pleasure, still on the edge of orgasm despite the fact that his cock isn't quite there. It's like his brain is ahead of the game, pleasure coiling tightly in his stomach more and more with every stroke of Zhongli's length.
"Fuck, I've never—never before I've—hngh—"
Childe feels like nothing but liquid in the sheets, bones melting down. Only the hefty weight of Zhongli's cock shifting against his insides. Every drag over his prostate, pushing Childe closer and closer until that orgasm just dies. He cries out, frustrated. He groans, clinging to Zhongli, fingers dragging down his back, nails digging in.
Zhongli smirks as he looks at him. Leans back and smooths a hand down Childe's entire being. Taps at the infernal cage wrapped around Childe's dick, definitely the worst idea he's ever had—
No, no, the best. Childe's nerves are on fire. He feels pleasure everywhere, from the top of his scalp to the tips of his toes. Vibrates with it. Sings with it. All of Zhongli—his weight, his cock, every drag and glide as he fucks him with heavy thrusts. How he ruts into Childe, watching him with that wild, affectionate gaze as if he's the only thing in the world.
"Ajax," he says. "Darling, look at you."
Somehow, Childe comes. It's unsatisfying, his orgasm pinched and ruined, but he tips over the edge, a small amount of spend dribbling from the tip. Childe yells, muffling it in the crook of his elbow, embarrassed and overwhelmed. Tightens around Zhongli's cock, sucking him in. "Shit, shit, Zhongli, Zhongli—" He just babbles his name over and over, drunk on what little high there is.
Zhongli angles his hips just so and comes, painting Childe's insides warm and wet.
Childe's cock twitches again. He's left fucked out and blissed, boneless in the sheets as Zhongli peppers kisses across his face, down his neck. Sweeping touches over his chest, sides, hips, his cock—
He grabs Zhongli's hand in a vice grip when the cage glows. "Wait," says Childe, voice hoarse and scratchy. His throat bobs and then he says, "Again."
Zhongli hangs over him, mouth parted in surprise. He swipes a thumb through the wetness that clings to Childe's eyes.
Then he grins, wild and feral, hand tightening around Childe's cock as he coaxes it back to life.