The feeling of Han Yu's sticky fingers around his throat makes Xi Zirui's breathing come up short.
He tilts his head further back, baring more of his vulnerable throat for Han Yu to squeeze.
Since he's an Android, Han Yu's body doesn't betray any of the telltale signs of lust that always gave his human counterparts away --the inkspill of his dark pupils, the fine film of sweat over his skin, his short staccato breathing
None of that gives this Han Yu's desire away, but Xi Zirui has become an expert at reading him, and he can see the hungry look in his eyes, the covetous way his hands tighten on his skin.
If he could, he would unhinge his jaw and swallow Xi Zirui whole.
It's heady, being gazed at like that, and Xi Zirui has to close his eyes against the swell of heat sizzling under his skin.
Han Yu pulls Xi Zirui back, flush against his chest, and throws the bowl of rice treats away with his free hand, making Little Thunder jump out from under the bed with a hiss.
His left hand is still holding on tightly to Xi Zirui's neck, his thumb digging into his jugular.
Xi Zirui can only watch, spell-bound, as Han Yu brings his other hand to the zipper of his jumpsuit and starts pulling it downwards, slowly revealing inch after inch of creamy skin.
He stops just below Xi Zirui's ribcage, the jumpsuit falling open on each side of his chest.
Xi Zirui's nipples stiffen up under the room's cold recycled air, raising from his slim chest as if begging for attention.
Attention that Han Yu is quick to provide, running the pad of a thumb over a stiff peak.
"I find these fascinating," Han Yu says, his voice almost detached as he continues to carelessly tease Xi Zirui's nipple. "Biologically, men have no need for them, isn't that right?"
Xi Zirui is in no condition to answer him, his mouth hanging open as he tries to get enough air into his lungs.
Han Yu doesn't need him to answer. "Completely useless, except for pleasure," Han Yu says, now pulling at the tender nub, making it red and swollen under his expert ministrations. "Did Xi Zirui know? I have full encyclopedic knowledge of human anatomy."
He looks down into Xi Zirui's red-rimmed eyes and smiles tenderly. "So I know that how sensitive a man's nipples are depends on how often they are stimulated in a sexual manner." (1)
That doesn't sound right to Xi Zirui, but he's in no condition to argue.
His already thin grasp on sanity only slips further when Han Yu leans over his shoulder to blow warm air over his abused nipple.
"Could it be that Xi Zirui is very lewd? Does he tease his nipples often?"
The hand around Xi Zirui's throat tightens a fraction.
Xi Zirui lets out a broken moan, arching his chest up into Han Yu's heated touch.
"Or...is someone else doing it for him?" Han Yu asks, a dark edge to his voice as his fingers pinch Xi Zirui's already abused right nipple.
"Only...," Han Yu's hand tightens on Xi Zirui's neck once again, making him choke on his words. "There's only Han Yu."
The pressure around Xi Zirui's throat vanishes suddenly as Han Yu's other hand joins the first on his chest, rubbing and pulling at his nipples carelessly, making Xi Zirui squirm in place like a snared rabbit.
Han Yu hums thoughtfully. "But how can I be sure of that?" He lets go of one of Xi Zirui's nipples and pulls down the zipper as far as it will go, just above his belly button.
His hand slides inside Xi Zirui's jumpsuit, under his underwear, and closes around his straining cock, making Xi Zirui bite on his lower lip to prevent himself from moaning shamelessly.
Han Yu tsks. "With such a shameless body, how do I know if Xi Zirui truly belongs to me?"
Xi Zirui wants to shout that he's like this because of Han Yu.
He has always enjoyed fucking, but it wasn't until Han Yu that Xi Zirui truly understood how much joy there was to be taken in sharing his body with someone else, in giving as much as in taking.
Getting it so good he forgets his own name.
He whines, low on his throat and fucks up into Han Yu's loose fist. "Only Han Yu, I swear, only Han Yu."
He can feel Han Yu's pleased smile against the side of his head, and then his fingers tightening on his cock, pumping up and down with expert ease, tracking the pad of his thumb over the weeping tip and making Xi Zirui squirm in his hold.
Han Yu helps Xi Zirui out of his jumpsuit the rest of the way off, until it pools around his shins, trapping him in place.
Han Yu's hand returns to Xi Zirui's cock, and he feels like he could weep. He can feel an orgasm drawing near, making his breathing come up in short pants.
"You're going to make me come," he warns, one of his hands flying out to stop Han Yu's hand.
"That's the goal," Han Yu says, shaking off Xi Zirui's grip.
Xi Zirui whines, low and needy. "I want to come while you fuck me, please."
Han Yu's grip tightens, and his lovely smile widens. "Who says Xi Zirui won't?"
The pace of his finger increases, and Xi Zirui can only throw his head back against Han Yu's shoulder in hopeless pleasure, one of his hands coming up to grip Han Yu's bicep for support.
Xi Zirui looks down at his body, at the way the lithe muscles of his abdomen strain and tighten under his sweaty skin, how his hard cock drips a milky stream of precum onto his stomach, creating a puddle that Han Yu dips his fingers into before bringing them back around his cock.
He speeds up the rhythm of his hand and Xi Zirui is hopeless to stop the wave of pleasure that crashes over him on a particular vicious downstroke.
He comes with a loud cry, his fingers digging into Han Yu's bicep so hard that if he was human Xi Zirui's blunt nails would cut bloody crescents into his skin.
Han Yu angles Xi Zirui's cock towards his stomach so that most of it pools on the valley of his heaving stomach and inside his bellybutton.
Xi Zirui tries to get his breathing under control, but it's clear that Han Yu doesn't plan on giving him any respite, still teasing the the sensitive tip of his cock.
"Stop, it's too much," Xi Zirui whines, but despite his words his hips still cant upwards, seeking Han Yu's touch.
Han Yu lets out a low chuckle but lets go of him, tilting Xi Zirui's neck to the side so that he can pepper a trail of fiery kisses all the way to his jaw.
"Xi Zirui is so beautiful," he says, just as his teeth graze the sharp junction of his jawbone. "I could admire him for hours."
"You can, you can do whatever you want with me," Xi Zirui says, angling his head so that he can reach Han Yu's lips and kiss him.
Han Yu's lips meet his, and Xi Zirui lets himself melt into his embrace, barely aware of Han Yu's roving hands. He sighs when they graze his raw nipples, but Han Yu's touches don't stop there.
One of his hands settles on the jut of his hip, while the fingers of the other run over the pool of cum on Xi Zirui's stomach, smoothing it between index and middle finger.
Xi Zirui doesn't know what he's going to do until his fingers travel around his cock, under his balls, and lower still.
Han Yu slides his legs under Xi Zirui's knees so he can spread him further apart. The hand around his hip pulls him up higher against Han Yu's chest, and Han Yu's wet fingers meet their mark, teasing lightly around the tight rim.
Xi Zirui sucks on a breath, trembling at the fluttering touch.
"Humans really are efficient machines," Han Yu says, his tone appreciative. "What overflows here," his clean fingers smooth over Xi Zirui's cock, "can be used to ease the way here," he says as the tip of his fingers force their way past the resistance of Xi Zirui's rim and dip inside.
Xi Zirui can only look down at his body and admire the mess Han Yu has made of him.
Han Yu's fingers sink further into him, making him cry out at the teasing pressure of the leisurely penetration.
"Xi Zirui is even more beautiful like this," Han Yu says, almost whispering the words into Xi Zirui's ear, voice as sweet and guileless as the day he found Little Thunder in that space station. "I want to keep him this way forever."
His words send a delicious shiver through Xi Zirui, there's something gluttonous in Han Yu's words, especially when paired with his sunny smile and cajoling voice.
"You can," Xi Zirui says, angling his hips in an attempt to get Han Yu's fingers deeper inside him.
"Xi Zirui shouldn't say that," Han Yu says, his fingers sinking in to the second knuckle. "I'm an Android, the limits of human stamina don't apply to me, I can go for as long as Xi Zirui wants, until he begs me to stop."
---
(1) Han Yu is spouting some horny nonsense. Nipple sensitivity has nothing to do with gender or frequency of stimulation.