Erotic short. Two guys go home from work together, and one of them makes his coworker gape.

Rated E, cis M/trans M, 3.6k. Glass fucks his coworker, a pretty trans dude half his size, in the ass, because he knows his dick won’t fit in his pussy.
Size difference, spanking, anal sex, teasing, overstimulation, huge cock, mentions of group sex and gangbangs, gaping, some oral.
It’s been a while in the making, this. Von has been craving it, wanting it, and Glass has teased him about it. He’s teased Von for being short, has made fun of the difference between their sizes, called Von scrawny when he’s just a little on the thin side, barely thinner than average.
He’s short, yeah.
Not unusually short, either — he’s five and six, for fuck’s sake — but everyone looks tiny compared to Glass, who’s six and a half feet tall and ripples with bulk and muscle. He can’t go shopping in regular stores, has to get all his clothes made and tailored for him, because they won’t be long enough, wide enough, strong enough for his needs — maybe they’ll be one of the three, sometimes even two, but never all three.
“C’mon, pipsqueak,” says Glass after their shift finishes up, his hands in his pockets, as if anyone in real life ever unironically fucking calls someone pipsqueak. He supposes if anyone in the world gets to, it’s fucking glass. “I’ll give you a ride home.”
“That the only ride you’re gonna give me?” Von asks, and the look Glass gives him makes his blood feel like it’s going to burst right out of his veins, makes it feel hot under his skin, makes his skin feel flush. A lot of the blood is flowing downwards, too, his cock twitching, his cunt beginning to get wet, and he runs over to the passenger side of Glass’ car.
Glass is an adult man, is in his forties, but he lives in a house of other brawny men, most of them gymbros, and every time Von is at his house, he feels like a fucking hobbit in a land of orcs, all of them huge and muscular and fucking… Hot, yeah. Not just hot, but dirty hot — he can always smell when he comes into the house, smell all their dirty gym gear hanging in the porch, waiting to get washed.
It smells nicer in the house proper — he can smell Duncan cooking, hear him singing along to the radio as he fries off vegetables and bacon and rice, and laughing in the living room, he can hear Rich and Innsmouth throwing a ball between each other in the living room, hear the slap of the leather between their hands, hear them laughing.
“Up you go,” says Glass from low in his chest, his voice a little hoarse, like it always is. Walking ahead of him on the stairs, Von lets out a breathless noise as Glass’ hand claps against his ass, and he runs up the stairs a little faster, goes into Glass’ room.
It’s a big house, and Glass’ room is particularly big.
He brags about his bed sometimes at the stadium, flirts back with girls who get dirty when he pats them down in line — says it’s reinforced, has steel beams to keep it from breaking from him sleeping on it, fucking on it.
Von wriggles out of his polo shirt and his sweats, kicks off his sneaks at the same time, and he feels the shadow of Glass in the doorway before he pushes the door closed behind him.
“My hand basically covers your whole fucking ass,” Glass says. “That’s what’s gonna make it so fucking hot when I spank it raw.”
Von swallows as he looks back at the other man, at the grin on Glass’ face as he shrugs off his jacket and hangs it up on the back of his door, as he starts to unbutton his shirt.
“Why do you to have to spank me?” Von asks, laughing faintly to hide how fucking hot the idea makes him. “What, I’m a bad boy for wanting to fuck you?”
“This isn’t some shitty Grindr hookup, man, I know what you fucking like,” says Glass, bending down to unlace his shoes before he eases his feet out of them. “And what you like is the original OTK, like you’re some kind of fucking 50s housewife. You want me to give you a pearl necklace and everything?”
“Sorry, dude, I only wear real pearls,” says Von, sitting back on the bed, and he watches Glass as he keeps undressing, licking his thumb and stroking the tip of it back and forth over his dick, dragging the nail over the very tip of it and feeling the pleasurable tingle run through him at the teasing touch. He feels himself getting wetter as he keeps on touching himself, watches Glass drop aside his shirt, his vest, and then unbutton and ease out of his jeans and his underwear at the same time.
Von almost wants to make fun of him for the briefs he wears, which seem so ridiculously fucking small compared to the rest of him, but he can’t focus on anything but Glass’ dick.
He’s seen it before, obviously, when Glass has been pissing at the urinal, or a few times when Von’s actually bothered to change out of his uniform after a shift, which he normally fucking doesn’t.
He’s never seen it like this, on the way to hardness. It’d seemed pretty fucking big every time Von’s seen it before, but that’s nothing compared to how big it is now, starting to slowly stand up even before Glass wraps his hand around it and squeezes the base of it, gives himself a firm stroke up and down.
It’s thicker around not just than Von’s wrist, but of the upper part of his arm, than of his fucking ankle. It’s not just thick, either, but long, must be something like seven or eight inches once it gets fully hard, and he can feel saliva building up in his mouth, can feel his empty cunt fucking throbbing at the sight of it.
“Christ,” he says. “You seriously are hung like a fucking horse.”
“What, you thought I was lying?”
“I thought you were using fucking hyperbole or metaphor or some shit, I didn’t realise you were being so fucking literal.”
“I’m a pretty literal guy, Von,” says Glass, striding over naked to the battered armchair he puts his PJs and his robe over, sinking down into it butt-naked, his cock like a fucking monument between his legs. “You know that. C’mere, why don’tcha?”
Von swallows, and slowly approaches.
Glass’ muscular thighs are warm under his body as he arranges himself, prone and vulnerable, over his spread knees, settled over the other man’s lap — he can smell Glass’ musk, smell the salty, heavy scent from his cock, and at the same time he can feel the prod of Glass’ cockhead up against his belly, feel it slick at the head and sliding against his stomach.
There’s no warning before Glass’ hand comes down with a sharp, loud clap against mostly his left cheek, but Glass had been right — his hands are big enough that even as his palm claps against it, his fingers still hit the other side. The sudden weight and heat of the blow makes him cry out loud before he thinks to press his mouth against the back of his arm. He’s gripping tightly at Glass’ thigh to steady himself, and he’s glad of that when the next flurry of blows comes down all at once — Glass hits his right cheek, his left, his right, his right again, his right again, and then three on his left all at once as he squirms and muffles all the noise he can.
He’s so wet that when Glass rubs down his thigh, he slides his fingers through the wetness leaking out of him, and he moans helplessly. His ass feels like it’s on fire from each of the slaps Glass has dropped down on his bare cheeks, and Glass hums as he grips hold of one cheek then the other and rubs each in a circle, making them jiggle.
“You’re fucking desperate for it, aren’t you, sweetheart?” Glass asks, and he slides his fingers up and through the mess Von’s made of himself, circling the entrance of his cunt before bringing his hand down again, this time partly between his legs so that the blow lands against where he’s open and throbbing.
It takes him by surprise, a harsh noise ripping out of his throat, and Glass laughs.
“Jeeze, Von, make some more noise, why don’t you? You want all the guys to run in here and see what the problem is, maybe plug up the spare holes?”
It makes a shudder run through him, and Glass laughs over him before he starts the spanking again, spanks his ass on each cheek, spanks the tender flesh of his thighs where they meet his buttocks, spreads his cheeks apart and manages to get a series of hard, open-handed blows right against his asshole even as he squeals and tries to struggle away from the sheer intensity of the hot pain, the way it thrills through him, shocks him.
His cock is twitching, jumping between his legs, and he feels dizzy with how much he wants it, craves to have Glass’ obscenely huge cock inside his cunt, filling him up to the brim, filling him so wholly he won’t ever fucking feel empty again.
“Such a little painslut,” Glass mutters, then laughs, and grabs hold of his cunt, squeezes him by his outer lips with his clit sandwiched between the flesh and rolls it between his thumb and forefinger, making him squirm this time because of the intensity of the pleasure instead of the intensity of the pain. “Okay. On the bed.”
Von gets to his feet on wobbly, weak knees, desperate to obey, and Glass stops him by saying, “Ah ah, pretty boy, just you wait a second — ” and grips his hips.
Von shivers as Glass rubs over his burning ass cheeks, presses his fingers into the bruising, hot-to-the-touch skin, and then with his grip still tight around Von’s middle, he dips his head and slurps loudly at the opening of Von’s cunt. Von yelps at the suck against one of his lips, and then the sink of Glass’ tongue inside him, sloppy and wet and strong. His knees nearly buckle, but it doesn’t matter — Glass keeps a tight grip around his middle to stop him from actually falling, and keeps tonguefucking him mercilessly even as Von tries and fails to muffle his whines against his shoulder or his hands.
“Okay,” Glass says, his voice even hoarser than it had been before. “Now, now get on the bed.”
Von nearly falls down, stumbles on the bedroom carpet, and then falls on his face.
“That how you want it?” Glass asks. “Face down, ass up?”
“No,” says Von immediately, voice muffled into the bedspread as he tries to work up the energy to move, and he slowly flips himself onto his back, looks up at Glass as he approaches, sitting back on his elbows.
“You ready for this?” Glass asks, and he wraps a hand around himself, strokes his cock up and down, and Von stares at it. He couldn’t even open his mouth wide enough to fit it inside, he doesn’t think, but he wants to try anyway, wants to suck on the head and taste the other man, wants to feel the slickness of Glass’ pre on his tongue. “You ready for me to fuck you?”
“Yeah,” Von says, nodding his head. “Fuck, I’ve wanted it since I fucking started working at the stadium, Glass, ever since I fucking laid eyes on you. I want it. I want it, I want it, I need it, fucking — “
“Show me,” says Glass, and Von spreads his legs apart, puts his fingers either side of his cunt and spreads his lips wider, so that Glass can see. So that Glass can see how pink he is inside, how pink and open, see how wet he is. “Oh, sweetheart,” says Glass, “you must be fucking kidding me. You think my dick is gonna fit in that tight little front hole of yours? I’d fucking rupture you.”
“Huh?” asks Von, uncomprehending, and he then yelps in surprise as Glass grips him by the ankle and drags him forward by it, yanking him to the edge of the bed as he lets his cock drop forward, between Von’s legs. He’s slicked it up with a packet of lube that he drops on the side of the bed, and lines himself up, not against Von’s open cunt, ready and wanting, but against his asshole. “Fuck,” Von moans faintly, actually feeling dizzy with want and also a little bit of fear. “I, um, I don’t — ”
“You play with this hole a lot, Von?” Glass asks, rubbing his slick cockhead against the tight furl of muscle — it’s already slicker and more open from how wet and open he is in the front, all his slick dripping down around his asshole.
“Yeah,” Von whispers. “Yeah, I do, sometimes, I like to — Guys fuck me in the ass, or I finger myself, I use two toys at once — ”
“Good, good,” says Glass. “That’ll make this easier, then.”
And then, his hands gripped on Von’s waist again, he begins to slide forward.
It’s bigger than some people’s fucking fist, Glass’ cockhead, and it’s ridiculous, the thought of it just going inside him, just going in, and he stares down helplessly at the sight of Glass’ huge dick pressing against his asshole, which is too small, too small, and it’s not open and ready like his cunt is, it’s not —
Glass’ dick pops past the tight ring of muscle and presses slickly inside him, and Von howls like he’s fucking dying, and maybe he is, his hands fisting in the sheets underneath him so hard he feels like they’re going to tear — it’s either them, or his asshole.
“That’s it, that’s it, good boy,” Glass praises him, not without a little more laughter, and he starts to rock his hips forward, rocks inside him gently and delicately, almost. It feels — Fuck, but Von is so turned on it really does just feel good, the slight burn nothing compared to the friction he’s been craving inside him, the sense of being full, and Glass’ dick is barely sunk into him at all. “Don’t you get it, Von? I was never going to be able to fit my dick in that tiny little cunt of course — you were always gonna have to take it up the back. Didn’t you realise that?”
Von means to say something, but all that comes out is a slurred, “Ungh, ungh — ” noise as Glass keeps rocking into him, sinking in just a little bit deeper every time, and it barely even burns now, it just feels like a lot.
“I said,” Glass says, and he gently smacks the side of Von’s cheek, making him blink a few times, “did you realise that?”
“Uh huh,” Von says.
“Aw, sweetheart,” says Glass. “This is a bit of a surprise, huh?”
His asscheeks are burning and throbbing from the spanking, all the blood in his body feeling like it’s drained down to between his legs, to his throbbing dick and his empty, aching cunt and his full, aching asshole.
“Yeah,” whispers Von.
“Well, that’s okay,” murmurs Glass, and pats his belly, rubs in the slick from his own cockhead earlier. “That’s okay, sweetheart. Surprise!”
And then he snaps his hips forward in one last movement, sinks into him to the root so that Von’s so full up his belly bulges a little bit with the shape of Glass’ dick inside him, bulging out and shining in the light in the room. There are tears on his cheeks, and he doesn’t feel as if he can breathe.
“You gonna come from this, Von?” Glass asks, and before Von can answer, he flicks his thumb hard over Von’s cock, and Von is coming so hard he sees fucking stars. He’s letting out wailing, sharp, desperate noises as Glass begins to fuck him properly, begins to thrust deep and hard and rough inside his ass, filling it up, and as he comes he can feel his cunt clenching and frothing and twitching around nothing, feel his cock jumping and shifting between them, feel his ass tightening around Glass.
Glass keeps fucking him through it, and fucking him like this, fucking his ass instead of Von’s cunt, it’s not as overstimulating as it ordinarily would be — he’d be sobbing his eyes out, he thinks, if someone kept on fucking his pussy this brutally while he was coming, straight after coming, but right now it’s just… good. It’s putting more and more of an edge on him, making him feel like he’s just getting pumped up for the next orgasm, and it’s good, and yet —
And yet.
It’s not…
“Would you,” he manages to gasp out, breathless, wanting, “put some fingers in my — ”
“Ah ah, ass only, you’re full enough for now,” Glass says, catching his hand before he can touch his own dick, and he grins down at him as he shifts his angle and starts to sink his cock in even fucking deeper, making him feel like it’s about to sink all the way through him and pop out the other side.
His cunt is so fucking wet he can’t even believe it, can barely comprehend it.
“Look how wet you are,” Glass says, and laughs, looking down between them. “Fuck me, look at all that bubbling white mess dripping out of your pussy — it looks like I’ve already creamed in you, huh? You want it that badly, huh? You want my dick in your front hole?”
Von nods his head eagerly, can’t hold it back, but at the same time, he almost wants to burst at the thought of it, at the idea of Glass’ huge cock filling up his cunt and shoving up against his cervix, probably threatening to pop past the fucking thing.
“You’re stupid when you’re horny, huh, pretty boy?” Glass asks, and chuckles. He keeps grinding into him, and Von despises the edge he’s on, the kind of precipice, because it feels good, but the pleasure is just a little too dull, a little too removed from where he wants it to be, from the direct pleasure that he craves and he needs and he aches for, even if it fucking kills him.
“Turn over,” says Glass, pulling back, and Von gasps in a breath at how fucking empty he feels, how his asshole is fucking gaping with the absence of Glass’ cock, how he’s just full up with air instead as he drops onto his belly.
“I want — ” and then Von yells into the bed beneath him, because Glass straddles him to sink his dick all the way into his ass again, and starts to fuck him hard into the mattress. It’s insane, like this, how stimulating it is — every slide of Glass’ ridiculously huge dick inside his ass feels like it’s rubbing against the whole of his cunt at once, and his dick is rubbing against the bedspread, and he’s so fucking close to coming, he’s so close, but he wants it.
“You’re fucking dripping with it,” Glass whispers against his ear, and then licks a stripe up the back of his neck, leaving Von howling into the mattress underneath him.
“I want you in my pussy,” he whines. “Glass, come on, I don’t care how big it is, I need it, I want it, I want it — ”
“Tell you what, sweetheart, let’s see if you can take a fist, then we’ll work up to my dick, huh?”
Von is coming before he can even think about, and above his body, he hears Glass groan in satisfaction. “Fuck, your ass is so fucking tight, Von. It’s a shame I’m gonna wear it out so much with how fucking big I am. Might as well share you with the house, right?”
Von whimpers faintly into the mattress, and Glass bites the back of his shoulder, nips at the flesh, and keeps on, mercilessly, insanely, fucking inside him.
“Do you ever fucking come?” he complains.
“Sure, when I’m ready,” Glass says, and smacks the side of his ass before he keeps pounding into him.
* * *
He passes out for a bit, he thinks, or maybe just enters some kind of dazed state, but either way, when he wakes up, when he comes to, it’s to Glass bringing a glass of water up to his mouth, making him drink. Von obeys, swallowing it down, looking up at Glass blearily.
He can feel how open his ass is, feel it struggling to wink closed even as he clenches it, because Glass’ dick has been so big and so satisfying in him, and now Glass’ fingers are teasing along the edge of it, playing with the spread muscle, tickling it.
“Now you’re gonna let everyone else fuck me?” he asks in a slurred voice, and Glass laughs.
“Yeah, maybe we work up to that too, big guy,” he murmurs. “You just spaced out with just my dick in you — you really want every guy in this house ruining every hole you got?”
“I mean… yeah,” says Von dreamily, and Glass chuckles, and presses their lips together — his lips are warm, and soft.
“Sleep it off for now,” says Glass. “If that hole doesn’t tighten up on its own, you tell me in the morning, and I’ll give you another spanking before you head off. Now get some sleep.”
“Do you think your dick is maybe magic?” Von asks blearily, and Glass laughs.
“Not as magic as that pussy of yours is. Now sleep.”
Von passes out before he even thinks to actually obey.
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