Work Text:
Katsuki loves milk.
And no, not the kind that sits in cereal, or the one you drink after having a bar of chocolate. Quite the opposite.
To specify, Katsuki loves Eijirou's milk.
Ever since they started dating, Katsuki has become an insatiable man that craves every drop of cum that Eijirou has stored in his balls. And there’s a valid reason for it.
When Eijirou does cum, it’s like a fucking fountain, filling Katsuki’s mouth or ass whenever he begs for it. It’s addicting. So much so that he sometimes barges into their shared apartment and barks out that he wants the redhead’s dick right then.
Like now for example. Work sucked ass and all Katsuki wants to do is sit on Eijirou's cock and get stuffed full of cum until he can't see straight. The only thing is that Eijirou isn't home yet. Katsuki doesn’t have time to fuck around and wait; he’s impatient.
So Katsuki throws off his clothes, jumps in the shower to clean himself out completely and dials up his giant of a boyfriend after throwing himself onto the sheets.
"Hey, babe!" Eijirou greets, unknowingly falling right into Katsuki's trap. "How was your day?"
Lube covers the blond's free hand, spreading out and webbing across his fingers. He reaches down, toying his index around his rim. A shaky breath escapes him at the touch. He listens in on the concern tracing itself into Eijirou's tone. "Kat? You okay?"
"Mm….mhm." Katsuki hums, pressing his fingertip in, biting his lip at the intrusion. Even though he's loose enough to take at least three, the fact that he's teasing the redhead is enough to have him tighten up. "Want you to come home already, Ei."
It takes a lot longer than Katsuki expects for Eijirou to put two and two together. "Katsuki." His voice lowers into a whisper, "are you...touching yourself?"
Katsuki can't help but laugh, starting up a rhythm with his finger, "Hm. A bit more than "touching", Red." He says, hissing between his teeth as he pulls his index finger out where the tip barely pokes in and then adds his middle finger to the mix. "How much longer are you gonna make me wait?"
The stuttery sound of Eijirou attempting to breathe normally has Katsuki smirking. "I'm uh.. n-no, Fat, I'm fine!" He overhears a jumble of voices talking to the redhead, and Eijirou responds, "no really! I'm not sick! I just had a mild hot flash!"
Without even having to see Eijirou, Katsuki knows that the man is beet red right now. It has his eyelids fluttering when he's able to fit his third finger in, thrusting them in and out with the squelch of lube to aid the way.
Unashamedly, Katsuki lets out a moan, mouth open and eyes shifting closed when he brushes along his prostate. The sound of the phone being fumbled with keeps Katsuki going.
Without speaking, he sends a text to Eijirou with his free hand to hurry the fuck up, and ends the call without saying another word. His cock is pointing to the ceiling begging for attention, but he won't do anything but stretch himself in preparation for his boyfriend's huge cock.
Eijirou rampages through the apartment about ten minutes later. His footsteps are loud and laced with a purpose. “Katsu-” His voice cuts off at the sight before him.
Katsuki is on his hands and knees facing away from him, a toy lodged in his puffy hole. The blond whines while he shoves it in and out of his body.
The redhead’s voice has Katsuki tilting his head to make eye contact with his lover. “Couldn’t wait any longer, Ei. I found a better replacement.” He teases, ass taking in the toy like it’s made for it. “Unless you’re willing to prove to me that your cock is stronger?”
He can see the exact moment that Eijirou falls into the scene, pupils dilating only to leave a ring of vermillion behind. He’s thankfully in his casual clothes that look rumpled, which most likely means that Eijirou hauled ass home without caring about his appearance.
Slowly, Katsuki retracts the toy from his hole, the squish of lube escaping in droplets down his thighs. He shifts off the bed, urging Eijirou over with his finger. "Colors."
Eijirou hums, "Green is go, orange is slow down, red is stop."
"Color now."
The redhead grunts, "Green."
Katsuki nods then points to the sheets. “Lay down.”
He obliges, running over and situating himself on his back. They’ve done this little game before and Eijirou isn’t going to deny that it has him hard in seconds at the mere thought of it.
Katsuki smiles at the vision that is his boyfriend, hard in his pants and panting like he ran a marathon. “Just one demand and you’re acting like this.”
Katsuki’s finger runs across Eijirou’s chest, lifting his shirt in the process. Eijirou shivers, keeping his eyes on the blond above him.
Then Katsuki flicks at a nipple.
Eijirou arches his back, keening into the touch as Katsuki does it again. He cries out, wanting to beg for more but knows that it won’t get him anywhere.
The blond notices, huffing out a laugh and looking down at his boyfriend with adoration. “That’s a good boy.”
Eijirou yelps as Katsuki suddenly straddles across him on the bed, cock leaking onto Eijirou’s abdomen. Katsuki’s ass lands straight on top of Eijirou’s covered erection, causing more of his precum to stain the front of his pants.
Two hands come up, deliberately taking their time in finding hold of heavy pecs, fingers pinching onto brown budded nipples. “So pretty, Red.” Katsuki whispers, and without warning he twists his fingers.
Eijirou’s cock jumps, gripping his lower lip in between sharp teeth. He groans, eyes rolling to the back of his head. Ever since he told Katsuki what he likes in bed, he’s taken every opportunity to do them. And thank goodness for that, because it’s helped their sex life exponentially.
One of the soft hands that sits on his pec releases, tugging the hem of his shirt instead. “Off.”
Katsuki lets the redhead sit up, still on his lap as he watches Eijirou throw it somewhere across the room without care. He goes right back into his position, this time putting his hands carefully on Katsuki’s hips like he’s asking for permission. Katsuki nods and Eijirou relaxes, allowing the blond to do as he wishes.
“So, Eijirou,” Katsuki starts after a moment, unapologetically grinding his ass onto the redhead’s aching dick, “how are you gonna show me that your cock is worth my time, hm?” He questions. “That you are… somehow… better than that toy I was using?”
Eijirou finds himself lost in the crimson Katsuki’s eyes are colored, unable to answer. Instead he lets his body do the talking, trying desperately to press his swollen dick up into the blond. He wants to be so good for Katsuki, the best dick that he’ll have that no toy will ever amount to.
And the idea of Katsuki crying on his cock has his orgasm embarrassingly close.
“Baby…” Eijirou whimpers, feeling himself getting close while Katsuki continues to hump his ass along his clothed cock, “m…'m gonna…”
"Already?" Katsuki’s eyes darken before he’s lifting himself up, putting both hands on the top of his boyfriend’s pants and pulling. Eijirou’s more than eager to help, raising his hips to aid in finally taking them off, watching in excitement as his cock flies up once his jeans and boxers are hoisted off his legs.
The tip of Eijirou’s cock is enveloped by warmth in mere seconds from his lover’s sweaty yet comfortable palm. Katsuki rubs into it, pushing at the head and proceeding to move his arm up and down.
“Go on.” Katsuki bends his head down, lips barely an inch away from the large cock. His other hand comes down to fondle at the balls that tighten up in response. “Cum for me. Let me taste you, sweet boy.”
And that alone has Eijirou throwing his head back against the pillows. His cock is leveled with Katsuki’s beautiful pink mouth, his spend splashing along the blond’s chin and dripping onto his fingers.
Katsuki moans the whole time, tongue sticking out to take in more of his sticky cum that has no plans in stopping anytime soon.
Eijirou curses out obscenities as he’s milked for all he’s worth, squeezed until he feels dry even though he knows he isn’t. Not by a long shot.
The blond has his other hand cupped under his chin, cum puddling onto it and dripping off the sides onto the sheets.
Once he’s calmed down, Katsuki moves back, using his cupped hand and tilting it into his mouth, cum running across his tongue and down his throat. Katsuki licks his lips to get the last traces of the cum off of them once he’s done and hums in delight, keeping eye contact with Eijirou the entire time.
Eijirou can’t help but let his eyes wander down his boyfriend’s body. That’s when he sees it; jets of white line his stomach, beads of it still sticking to the top of his dick.
“Kat, did you… did you cum?!” Katsuki hums. He looks drunk, still coming unraveled by Eijirou’s spend landing in his mouth. Just the thought has blood rushing straight back down to Eijirou’s groin, kickstarting another erection quickly.
“...tasted good, sweetheart. I couldn’t help myself.” Katsuki drawls. Moments pass and then the blond moves right back on top of Eijirou, this time taking hold of the slowly growing cock and positioning it right below his raised body-
“Hold on! O-orange!” Eijirou stutters, nowhere near ready for Katsuki to take him in. “G-give me a few, babe.”
Katsuki raises an eyebrow, “A few?” he copies. “This cock just for show or something?”
“It’s n-not that!” Eijirou squeaks, averting his eyes and trying to think of any excuse to give him time to let his cock relax for a moment. “I wanna be good for you.” He says, looking up at Katsuki. “Please, give me a second.”
The stare Katsuki levels him with is all the agreement that Eijirou knows he’s going to get, and he sighs. “Thank y-”
“Use your fingers.”
Eijirou gets interrupted when Katsuki reaches down, picking up one of the hands off his hip and tugging it back until his index finger touches along Katsuki’s loosened hole. “I need to be filled up, Ei, so you’re going to stretch me open with these thick ass fingers of yours until your cock can pump me full of cum.”
And if that isn’t enough to get the redhead riled up, Eijirou doesn’t know what is.
Thankfully, the bottle of lube is right next to his body, so with his free hand he pops the cap and coats three fingers in the liquid. He rubs them together to drench them evenly, and shuffles them back by Katsuki's ass until his middle finger pushes in.
Katsuki does a full body shudder, eyes flipping shut and head bowing as Eijirou takes in the sheer tightness that surrounds the digit.
The process usually takes a while to get through, but with all the planning and prestretch that Katsuki did it’s much faster. Soon Eijirou is two, then three fingers deep, prodding along his walls and taking in the feeling of the blond’s hole relaxing around the three digits.
“F-fuck yeah, Ei. Just like that.” Katsuki breathes, gyrating his hips into the presses of his lover’s fingers. “F-Filling me up s...o nice…”
Katsuki pulls all the way off a minute later, jerking Eijirou’s fingers out of his ass in the process. The blond eyes his boyfriend’s cock that became fully erect once more, redoing his earlier adjustment with his hole right over the redhead’s cock. “Let's test and see if you're better than my favorite toy, hm?” Katsuki asks, and not waiting for a reaction he slides all the way down to the hilt in one motion.
Both of them shout in pleasure, with Eijirou’s dick hitting Katsuki’s prostate dead on and Eijirou being surrounded by nothing but pure heat and wetness. Katsuki stills to get accustomed to the huge size of the cock deep inside him.
Once he’s sure that his body is used to it, Katsuki carefully hoists himself up, hands placed on the redhead’s chest for balance before he drops back down.
He starts up a steady pace, the sounds of panting, skin connecting, and slick lube leaving Katsuki’s sloppy hole echo along the walls of their bedroom.
Katsuki takes hold of the redhead’s fiery locks with one hand, the other still holding himself up. He wrenches Eijirou forward until they clash into a kiss. Eijirou whimpers, tasting himself on that obscene tongue and forcing his hips up more into the tight fit that is Katsuki’s ass.
Katsuki reels back, nibbling at Eijirou’s lower lip until it falls out of his grasp. He doesn’t let go of his hair.
“Sh-shit, Kat-’skiii…” Eijirou wails, thighs shaking and balls rumbling in anticipation to fill up his blond boyfriend full of the thick white seed. “'ou fffeel so g-good. S...so hot-”
He chokes on a sob when Katsuki reigns his head back by a rough tug of his hair and lips collide with his sensitive neck. The palm placed on the redhead’s chest runs around to his pec, cupping it lightly.
“God, fuck -” Katsuki grits out along the juncture of his boyfriend’s neck, lips and tongue trailing a road of gratefulness down the bone and kissing at his pulse point. “You’re fucking big, Red. I’m so full.” He breathes heavily, chest rising and falling just like his hips slapping down on the redhead's below him.
One of Eijirou’s hands finds itself laying on top of the blond’s pec, squeezing it in his hold. Katsuki lets out a mewl, leaning into the touch. “Yeah. Fuck. Keep doing tha-ahh…”
Both of them take hold of one another in some way shape or form. They kiss, whisper sweet nothings about how amazing they are. The one thing that stands out however, is when they brush lips together and Katsuki whispers “I love you”; it’s something he rarely says, but means it with his whole heart when he does.
The overwhelming feeling of affection has Eijirou boiling over, taking purchase of the blond’s hips and shoving his cock as deep as he can. Noises are pushed out of Katsuki, mouth agape and eyes crossing while they flutter.
“Haa...haa...I’m gonna cum a-ag-agaaain!” Eijirou warns, hiccuping out a sob at the idea of the insane amount of his seed about to overflow Katsuki’s hole.
It’s the only thing he can say before his abdomen tenses up and he spills deep into his boyfriend’s ass. Katsuki's ass is filled with hot cum that pours so much that it feels like it runs into his intestines.
Cum continues to pour out of Eijirou like a tap, making sure that every nook and cranny of Katsuki’s insides aren’t left untouched. Eijirou watches as the blond's stomach begins to protrude with the crazy amounts of spend filling him up.
Katsuki orgasms seconds after Eijirou does, his seed shooting out onto the redhead’s body below him. Eijirou continues, Katsuki beginning to look like he ate a large meal.
Finally after a minute, the cum slows and then stops, Katsuki's belly bouncing and sloshing. They stay like that for a moment, basking in the afterglow.
The blond falls down onto Eijirou, who’s lightyears away from reality, sitting on cloud nine. "Alright. Hah.. you win…hah...best cock ever, Red." He pants.
Slowly, Katsuki raises himself off of Eijirou’s flaccid cock, cum leaking out of his red hole and all over the redhead's dick and the sheets. He cringes at the mess he knows is going to be a bitch and a half to clean up, but finds himself more focused on taking care of Eijirou, whose eyes are unfocused, breathing unsteadily.
He grabs at the towel he had thrown down next to the bed before Eijirou got home but just as he goes to use it, Eijirou grabs Katsuki's wrist.
Katsuki looks confused, "Ei, wh-"
"-wanna taste 'ou." He juts his hips up, whining. "Came home f'r 'ou." Eijirou slurs out, "M’ too. Pl'se, kat'siii-"
"You want me to drink some more, hm?" Eijirou nods enthusiastically. Katsuki tilts his head like he's debating on following through with the request. Then he twists around, settling the cum covered hole over his face.
"Go on now." Katsuki says, his own mouth hovering over Eijirou's cock. "You clean me out nicely, and I'll drink the rest of your milk, how does that sound?"
And shit, if Eijirou ever ate something so quick, the time is beaten by rolling his tongue over Katsuki's ass.
"Yes, fuck , agh-" Katsuki’s own mouth licks small over the tip, and around the shaft, taking up as much of Eijirou's cum as he can without fully putting his lips around the flaccid cock.
Minutes pass by, soft sounds of pleasure coming from both men, tongues covered in Eijirou's cum.
After Eijirou licks the last bits of his own release out of his boyfriend, he pulls his head away, falling back onto the bed. Katsuki does the same, humming when he comes off of Eijirou's limp body.
Taking the towel again, the blond quickly rubs down his lover’s stomach and the tip of his dick. “Come on, sweetheart. You’re okay. It’s okay.” Katsuki reassures, taking hold of the redhead’s arms and lifting him up into a sitting position. He runs his hands through the tangled red hair, nose nestled into his jaw.
Several minutes pass, both of them catching their breath and coming down from the high. Eijirou is still out of it, barely vocalizing anything Katsuki says to him. The blond taps Eijirou’s cheek, “Let’s get into the shower.” he says.
Eijirou nods absently, following Katsuki as he grips his hand to bring him into the bathroom with him.
He flings on the shower, warm water flying out of the shower head. Katsuki pushes Eijirou in first, and jumps in behind him to start working on his hair and back.
The redhead is silent the whole time, blinking slowly. Katsuki continues to speak at a low volume, murmuring things like how amazing Eijirou felt, and that he’s such a good person and hero.
As time went on, Eijirou began to come back to himself, back straightening and shaking his head to readjust to reality once more. He eventually takes over on washing his own body steadily while Katsuki rinses out his ass to the best of his ability.
They let the water run down their skin until it turns cold and then they shut it off, listening to it drip down the drain. Eijirou brushes his nose along the side of Katsuki’s damp face, kissing the edge of his temple. “Mmm…was nice." He murmurs. "I love you, ‘Tsuki.”
Katsuki smiles softly, turning his head and lifting a hand to tuck a stray strand of wet hair behind Eijirou’s ear. “Love you too, Ei.”