Thread by @DekuDisaster

NSFW #dkbk 🔞
They've had a long day. Izuku's on the couch with his arm wrapped around Katsuki.

"Izu, I'm hungry, but I don't want to cook." Katsuki pouts up at him.

"I'm horny, you're hungry—which do you think is most important right now?"

Katsuki shifts back a little, still tucked under Izuku's arm.
"Um, my hunger?"

Izuku shakes his head. "My cock." He gestures to the tent in his jeans. "How about we kill two birds with one stone, baby?"

Katsuki licks his lips as Izuku trails the hand on Katsuki's shoulder to the back of his neck. The blond preens and smirks at his boyfriend.

"Get to work, Kacchan."

Katsuki's fingers fumble with the button and zipper of the jeans and groans in frustration.

Izuku tenderly scratches the back of his head. "Easy, baby. I'm not going anywhere."

Izuku watches as his boyfriend takes a deep breath and tries again.

Once he's peeled the jeans out of the way and sees his prize, Katsuki dives in.

He might have had a trail of drool leaking from the corner of his mouth, but he'd deny it until the end of his days.

He loves Izuku's cock. Katsuki's a bit of a size queen and Izuku never fails to satisfy him.

With just the head of Izuku in his mouth, his lips stretch wide.

Katsuki flicks his tongue over the slit, then descends further. Katsuki reaches a hand out to grip the base,

but Izuku softly bats his hand away. "Ah, ah. Mouth only, Kacchan."

Katsuki would roll his eyes but Izuku being commanding like that makes the whole situation so much hotter.

Katsuki takes more of his cock until the head pushes against his throat.

Izuku's grip in his hair tightens ever so slightly. "C'mon, baby boy. You can do it."

Blush spreads across Katsuki's cheeks. He takes a deep breath and swallows around the intrusion, allowing the fat cock to breach his throat.

"Good boy," Izuku purrs. "Take your meal, Kacchan."

Izuku's hold softens but doesn't disappear.

Humming around the length, Katsuki swallows again. He pulls back to lick at the head and place little kisses along the length. When he gets down to Izuku's balls, his mouth opens wide as he licks a fat stripe up the underside.

Katsuki's gonna take it all this time. Izuku's so /big/ that Katsuki struggles, but he knows he can do it this time.

When he comes back to the top, the cock head smacks his tongue. He opens his mouth as wide as he can and slides down. He swallows when it reaches his throat and

hums around it. Katsuki looks up at Izuku with teary eyes.

"Do you want me to help, Kacchan?"

Katsuki nods as much as he can with a mouthful of cock.

He breathes deep as Izuku's hand tightens in his hair and lets the tension bleed out of him as he's moved down.

He wants to smother his face in the green curls waiting for him. He's not at the base yet, but this is the closest he's ever been. He gags but holds himself steady.

"Look at me, doll."

Katsuki makes himself lock eyes with his boyfriend. Part of him is ashamed—they've been together for so long, so why can't Katsuki take Izuku's cock like he deserves?

Tears fall from his eyes as his eyelashes clump together.

"You're perfect, Kacchan."

Izuku pets the back of Katsuki's head, fingers carding through his hair before tightening, giving Izuku a firm hold.

"Now swallow for me."

Katsuki does.

Izuku pulls Katsuki's head back, just a little, and thrusts up into his mouth. Not big thrusts, not enough to hurt his

boyfriend, but enough to tease the back of Katsuki's throat while giving himself some stimulation.

Katsuki lets Izuku hold him still and thrust into his mouth. He keeps his throat relaxed and swallows every chance he can around the cock.

Before too much longer, Izuku pushes in and pulls Katsuki's head down, just a little, and holds him there. Izuku can feel Katsuki's throat spasm around the intrusion.

"Swallow."

Katsuki's throat tightens impossibly further, and Izuku's done for.

He cums down Katsuki's throat,

not letting up until he's swallowed it all.

When Katsuki sits up, a drop spills out the corner of his mouth. Katsuki's tongue swipes out to catch it.

He places a kiss on the head of Izuku's cock.

"Feel better?"

"Much. Thank you, Izu."

Katsuki rests his head on Izuku's thigh, happy and sated. Izuku pets his blond hair with slow motions.

"You're welcome, baby boy."