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Hongjoong knows, roughly, the size of Mingi's dick based on how big it looks soft when Mingi walks around the house naked because he conveniently forgot to take his towel to the bathroom with him for the third time that week, and on how big it looks when hard, waving at him as Mingi performs in this fancam Hongjoong watched more times than he had watched anyone else’s, including his own, ever. Maybe combined. So, after getting a ruler and figuring out a target number, he finds a sex shop that's more or less close to the studio.
He wears a mask, a bucket hat and big glasses as he browses the dildo section at the store. He grabs a package that has a number that matches the one he'd measured on the ruler, and the thickness seems about right too, and he goes to the counter with his shameful purchase where he has to interact with a young woman with long hair and two eyebrow piercings on the right eyebrow, and she's very friendly and asks him if he needs anything else. As Hongjoong asks her where he can get lube, he's thankful that the group hasn't reached anything close to domestic fame yet, granting him, perhaps, a little more anonymity.
He's jumpy and distracted the rest of the day at the studio, like someone is gonna be able to use their x-ray vision on his backpack and find a dildo that was closer to the unrealistically large sizes than the smaller ones on the shop racks. It shouldn't even matter that he bought a sex toy, so what? But Hongjoong is still in the early stages of accepting his newfound want for cock.
His first attempt at doing absolutely anything with the new toy comes a few days later, when he comes to terms with having bought the toy in the first place.
After locking the bathroom door and making sure it’s locked, and then making sure it’s locked a second time, Hongjoong unwraps the fake cock and the lube from the bundle of fabric formed by his change of clothes and the towel, which he had gripped like his life depended on it on his way to the bathroom so none of the incriminating contents would fall off.
He places the toy on the counter propped upright so he can have a good look while the bathroom fills with steam from the hot running water, as he hadn’t been able to inspect his acquisition before with how nervous he was to even think about it.
The toy is transparent, veiny (like Mingi’s cock, or so he assumes), and has a suction cup at the base that the cashier at the store mentioned in passing to be a really strong one, which made Hongjoong blush and got him a little nervous about being unable to detach it from the floor or the wall, or maybe detach with a popping sound so loud someone else in the house who may have been in the same premises as a rubber dick before in their lives would recognize. It’s all absurd, of course, but his anxieties aren’t soothed by factual knowledge.
He glances at the door one last time, but convinces himself to not check the lock again, and then he holds the shaft of the toy with one hand, with pleasure rolling through his stomach and settling in his guts when he realizes his thumb and middle fingers won’t meet around the girth.
Hongjoong undresses quickly, and brings the toy to the box with him along with the lube. He soaps up the dildo nicely with his body soap, secretly enjoying the way his hand seems so small around it and the way it glides so nicely and he can feel the weight of not-Mingi’s cock which makes him dizzy thinking about it stretching him.
After the half assed wash, Hongjoong sticks it to the wall opposed from the showerhead, estimating the height his ass would be when kneeling down to take it, but without actually getting on his knees to measure it so he doesn’t humiliate himself in front of himself before it’s absolutely necessary.
Hongjoong washes up in record time, not taking more than five minutes to go through his soaping and shampooing routine. He usually takes long in the bath, somewhere around 30 to 40 minutes, just enjoying the warmth of the water hitting his body and letting his thoughts flow freely as well as his hands, and it’s a habit of his to have a playlist running and to leave after it ends. Everyone is used to it, and Hongjoong suspects he’s going to need and/or want every second he can get all alone and without anyone thinking of disturbing his peace. His first time having Mingi up his ass should be special, somewhat.
Once done, Hongjoong gets the lube that had been left beside his other shower products, and he kneels close to the wall where the toy is stuck.
After pouring some lube on his fingers, he reaches between his legs to find his hole and spread the lube around the pucker, circling the rim with the tip of his fingers slowly before he presses his middle finger in, sinking it only a little bit before dragging it out to gather more lube and then penetrate his hole with it again so more of the substance will coat his insides. He does it a couple more times, until his body starts to relax around the finger and he can slide it in and out comfortably, without his body tensing up with the intrusion, and then he’s adding the ring finger along.
Hongjoong takes it slow. He’s played with his hole a few times before in this same place, and he knows the pace to get himself to relax. When his fingers brush against his prostate, Hongjoong clenches around them with his breath hitching for a moment, and it’s hard to resist massaging it for a few seconds to build his pleasure more, but he’s a man with a mission today — to get his hole as stretched as possible to take Mingi’s hypothetical dick.
The third finger has some more resistance to go in, but he manages to with only the first few seconds inside being uncomfortable. He leaves his fingers there, still, until he stops clenching at any small movement so he can sink them in deeper with a quiet mewl at the sensation. While rocking his hips, Hongjoong starts fucking himself with his fingers in short and sharp movements. His other hand covers his mouth, keeping himself muffled despite the fact that he's pretty good at being quiet, but occupying his other hand with a task also helps him resist the urge to touch himself.
He pulls the fingers out so he can introduce a fourth one, pinky and index tucked under the middle and ring fingers when he starts pushing in. In an attempt to ease them in, Hongjoong moves his hips back and forth slowly. He just leaves them inside for a while, curling the fingers a little bit every now and then to get a jolt of pleasure with the pressure against his walls. His pathetic hard cock has been dribbling precum for a while now and he's getting antsy about the dildo, so he barely spends any time with the four fingers inside.
Hongjoong pours a generous amount of lube in his palm, and then, swallowing thickly, he wraps the hand around the dildo again. First he forms a ring with his thumb and forefinger right under the head, and when the palm of his hand presses against the shaft, the lube spreads out a little bit squeezed under it and Hongjoong, biting his bottom lip, strokes it a few times to make sure everything is properly coated and ready to go inside him. Perhaps he strokes it too much, enthralled by the sight of his hand around a big dick and by the thought of kneeling in front of Mingi to give him a handjob, with the cock on his line of sight and close enough that a good spurt of cum could maybe land on his face.
Holding himself up on his knees, Hongjoong moves his hips forward, closer to the toy so he can compare sizes, and the difference when he holds his cock and the dildo side by side makes his dick twitch as a new wave of pleasure pools in him. He’s so pathetically small in comparison, a little over half the size
He turns around to have his back to fake Mingi, reaching behind himself to take the rubber thing and guide it to his hole, his other hand on the floor in front of himself to keep him steady.
The small noise when he feels the tip against his body is involuntary. When he moves his hips back while still holding the toy so it starts pushing, nudging the rim and forcing it to stretch to get into his hole, Hongjoong feels blood rushing to his face with the embarrassed realization that fake Mingi is massive and he definitely was too ambitious getting it without the series of buttplugs the internet had recommended putting in to prepare. He feels naughty for it, imagining Mingi in his low caveman voice remarking how greedy he was and saying he was gonna have to take it all now that he’s started, his thighs trembling with the mix of Mingi’s voice in his head and the feeling of his hole being stretched by the tip of the dildo.
At the first sting of pain in his underprepared hole, Hongjoong jolts forward, clenching around nothing, toes curling as he waits for the wave of discomfort to subside. Isn’t that what you wanted, huh? Hongjoong gulps after hearing his own thoughts and moves his hips back again to present his hole to not-Mingi, who doesn’t help much in easing itself in, and the pressure comes back as his hole makes way for Mingi. He tries not to move away from it now, sure that Mingi would hold him in place and make him take it, or so that’s how his fantasy goes.
The sensation of being stretched is delicious. The sting is still there, but Hongjoong takes a deep breath and stills when it’s too much to handle, trying to keep his progress intact while his hole clenches around the soft silicon. At the point where the discomfort doesn’t come accompanied with pleasure, Hongjoong takes a moment to let his body relax, but ultimately decides he needs to get the cock out of his ass and try again. Reaching behind himself, he places his thumb and forefinger right where the dildo meets his rim to mark how much of it had gotten in. After moving away and turning to look, his stomach rolls in perverted twisted embarrassment to see he had only taken the head in. Hongjoong wonders if Mingi would find it hot that Hongjoong is so tight and can’t take him at once, if he’d keep just the tip in and jerk off to cum inside him.
He tries it again, going even slower though he knows he’s sort of running out of his precious shower time, but he’s resigned himself to fitting just the head of the cock inside again, maybe a little bit more than that, but not the whole thing as he had optimistically envisioned at first. After relaxing, Hongjoong clenches around the toy just to really feel how full he is, just to feel the pressure against his walls, and he moves back and forth in the smallest movements just to feel the drag of his rim on Mingi’s cock. He reaches down to his own cock to jerk off, and he feels so full with only the head stagnantly plugging him while in his mind Mingi shames him for not being able to take the whole thing. It’s intense, and Hongjoong is sure that with some practice he can come just from feeling full, so overwhelming the cock is with only a small fraction of it’s sizable length in. Feeling how small he is in his own hand as the movements he needs to make are so short to cover the whole length in comparison to the dildo, Hongjoong is pushed even closer to the edge.
It takes embarrassingly few strokes for him to cum and Hongjoong squeezes his eyes shut, hand covering his mouth pressing harder to muffle his involuntary moan. His orgasm is strong, reverberating within his chest and making his head spin, and when Hongjoong opens his eyes again, taking the hand away from his face while he keeps jerking his cock to prolong the pleasure for as much as he can, Hongjoong sees stars dancing around in his vision. He lies there, face down and ass up in the cold tiles of the shower, heart beating so fast like he’s just finished a performance.
He sways his body forward so the toy will unplug his hole, clenching around nothing with his gaped hole, and in his imagination Mingi just cums so much and it would drip so nicely from his hole down his thighs and his perineum towards his balls. He trembles at the thought, imagining the ticklish sensation of the warm cum running down.
Feeling fucked out despite barely having taken half the toy in, Hongjoong just lies on the cold tiles of the shower for a moment to recompose himself. With post-orgasm clarity, this whole thing starts feeling a bit silly, and it’s mostly embarrassment that he feels towards himself that makes him push himself up. He sees the splash of pearly goo on the floor, his cum shot having come too close to his face. Hongjoong is unsure whether any of the substance landed on his hair, and does his best to remain ignorant regarding it until he finally crawls under the stream of hot water from the shower to rinse his hair and wash the lube off his abused hole so he can start collecting his things to get out.