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Izuku woke up to warm breath and soft groans against the back of his neck. With his eyes still shut, he smiled, content—welcoming Katsuki’s body heat and tilting his neck at the right angle to give his boyfriend more room.
It had been tough, these past two years. Katsuki’s rehabilitation wasn’t going as smoothly as they all thought it’d go in the beginning. He was having more trouble using his quirk with his right arm than any of them had accounted for, and overall, the path to recovering his strength in it was proving to have more downs than ups.
But altogether, he’d been doing mostly fine. His determination to get better was a force to be reckoned with, and he normally didn’t let a few setbacks or bad days bring him down.
Yesterday, though, an especially challenging villain takedown managed to bring down Katsuki’s morale more than they were used to.
Izuku had made sure to be there for him, of course—like he’d been doing every day for the past year since they’d started this. On days when Katsuki felt helpless, broken, and exhausted beyond belief, Izuku was always there to put him back together.
It hadn’t always been easy. The road to building this relationship had been a push and pull of trial and error, of meeting each other in the middle and learning to navigate each other’s greys. Not everything was black and white, especially in a relationship between two people like them, with their history.
But somehow, they’d managed to find a perfect balance—a silent agreement, a language that needed no words.
Izuku felt Katsuki shift behind him, his bandaged hand caressing the visible skin that peeked from under Izuku’s t-shirt.
“Hm?” Katsuki murmured in his ear. A symbolic ask for permission.
Izuku nodded, rutting back against Katsuki’s already hard bulge behind him.
Katsuki’s libido really was something, Izuku thought to himself, smirking. But he figured this wasn’t all there was to it.
Last night, Izuku had made love to him twice, holding him through his tears and making sure he knew he’d always be there to take care of him. Katsuki had silently cried the whole time, his battered, traitorous arm practically limp at his side—a reminder of the events of the day.
Today, though, it was clear Katsuki needed to take. And Izuku was more than willing to let him do as he pleased.
Katsuki’s hand was faring better after a good night’s sleep, apparently. Izuku felt the sheets rustle and then Katsuki tugging his underwear down behind him. A hot rush of arousal coursed through Izuku’s very core at Katsuki’s eagerness.
Katsuki kept kissing along Izuku’s nape as he gripped his hips, setting a slow, torturous rhythm against him. Izuku could feel his underwear getting wet where Katsuki’s cock met the cleft of his still-clothed ass.
He was losing his mind.
Their sexual dynamic wasn’t at all a fixed one, but lately, Izuku had gotten used to being the one on top. He didn’t particularly mind, but Katsuki had taken a liking to bottoming, and Izuku had been more than happy to oblige.
Today, though, it was clear Katsuki needed to be the one in control. His pent-up energy and frustration coursed out of him in waves, and what was Izuku to do but accept all of it?
In a hurried, swift motion, Katsuki pulled down Izuku’s boxers too, his mouth never leaving the freckled juncture between Izuku’s neck and shoulder. Izuku shivered as he felt the wet crown of Katsuki’s cock rutting against his bare ass.
“Kac—Kacchan…” Izuku heard himself say, pathetic and weak.
“I got you,” Katsuki whispered, fitting his cock between Izuku’s thighs. “Hold these tight for me, yeah?”
Izuku felt the wet heat of Katsuki’s cock sliding against his balls, and his eyes rolled in pleasure—the mere feeling of Katsuki using his bare thighs for his enjoyment making him dizzy.
It went on like this for several minutes, no words uttered between them, just the filthy sounds of Katsuki’s cock sliding in and out of Izuku’s thigh-made tunnel. Izuku was fine just being an object for Katsuki’s delight, but still he couldn’t fight the need to touch.
He brought his hand up and caressed the side of Katsuki’s face, guiding him closer. Katsuki lapped at his neck like a crazed, starved man before suddenly grabbing Izuku’s leaping cock. He hissed at the movement, his arm still too sore, but he pushed through anyway.
Izuku knew better than to question him and let him do as he pleased. Katsuki needed this.
“You like this?” Katsuki asked right before biting Izuku’s ear.
Izuku growled in response, and Katsuki began timing his thrusts with the pace of his wrist.
Suddenly, his rhythm faltered, and Izuku felt the hot, deliberate press of Katsuki’s cock head against his entrance.
“Can I—” Katsuki panted in his ear. “Can I put it in?”
The bluntness made Izuku’s heart stutter, and he swallowed a gasp in anticipation. It had been a long time since he’d bottomed, and even the light, tantalizing kiss of Katsuki’s wet crown was enough to make him lose his mind.
“Yes, please, Kacchan,” he blabbered incoherently, tightening the arm holding Katsuki’s neck. “You can do whatever you want.”
Katsuki wasted no time letting go of Izuku’s cock and grabbing the bottle of lube from his bedside table. It was mostly empty already, since they’d almost used it all last night.
He sloppily poured a generous amount onto his hand—eagerness getting the best of him—and quickly pushed one finger inside Izuku’s tight hole. Katsuki’s warm body fit closely behind Izuku’s back again, and he closed his eyes, trying to relax at the intrusion.
It had certainly been a while since he’d bottomed, but he was no stranger to pain, and this was hardly it. Letting out a soft breath, he leaned his weight on Katsuki’s chest and nudged his face. “I can handle more.”
Katsuki’s cheek felt like literal lava against his. He was panting behind him, his strained, battered hand opening Izuku’s insides like he needed to prove a point. Izuku smiled knowingly to himself.
“You haven’t bottomed in a while, nerd,” Katsuki said as he kissed Izuku’s jawline. “I don’t want to hurt you.”
Izuku tilted his face at a weird angle to capture Katsuki’s lips. “I’ll be okay, Kacchan.”
Katsuki tsked but kept pushing his finger inside Izuku’s tight rim until he reached the first knuckle. Izuku knew he’d have a hard time convincing him, so he played his cards well.
“Please?” he begged, pushing his ass back to make Katsuki reach even deeper.
“Fuck,” Katsuki cursed behind him and folded completely, adding a second finger and starting to scissor Izuku’s insides at a ravishing pace.
Izuku was drowning in pleasure, welcoming Katsuki’s sloppy fingers inside him and trying to push back as hard as he could—but he needed more.
“Didn’t you want to put it in?” he teased.
Katsuki cursed again and added a third finger for good measure, hissing at the strain on his arm again.
“You sure?”
Izuku hummed, content, closing his eyes and relishing the feeling of being connected to Katsuki, in whatever form they chose to.
“Fuck, okay—yeah, I’m going t–” Katsuki’s voice was suddenly cut off by Izuku’s yelp.
“Fuck!”
Katsuki’s cock slid all the way in without giving Izuku a chance to adapt.
“Fuck, baby, I’m sorry!” Katsuki pushed back as if to pull out completely, but Izuku stopped him, hurried.
“No, no, stay!” Izuku panted, his forehead suddenly covered in sweat. “I’m fine, let me just—”
Fuck, he’d missed this—the feeling of utter fullness, of having Katsuki’s pulsing heartbeat inside him. He wouldn’t trade the feeling of getting to feel it around him, of course, of filling him up—but he loved getting to see the other side sometimes.
It felt good, it felt amazing, and he knew Katsuki needed this today, so he made sure to let him know how good it felt. How good he was.
“Better?” Katsuki whispered in Izuku’s ear.
Izuku could feel Katsuki’s fast, hammering heartbeat against his back.
“Yeah, you can move,” Izuku reassured him.
Katsuki grabbed Izuku’s hips and started a gentle, steady rhythm.
“It feels so good, Kacchan,” Izuku mewled as he pushed back against Katsuki, his eyes closed. “You’re filling me up so good.”
“Fuck, Izuku, if you keep this up I’m not going to last long,” Katsuki confessed into the crook of Izuku’s neck as he grabbed his leg and pulled it up to get a better angle. “How do you manage to last at all? It’s so fucking tight in there—fuck, I forgot how tight you fucking squeeze me.”
“I know, right? It feels amazing. God, Kacchan, keep going,” Izuku said, absentmindedly reaching for his cock, resting hard on his belly. Katsuki instantly pushed his hand aside.
“Let me.”
“But Kacchan, your arm—”
“I said let me,” Katsuki said sternly as he held Izuku’s leaping cock and began timing his thrusts with his handwork.
At this angle, Katsuki had an amazing view of Izuku spread out against him—legs wide open, his big cock bobbing with every thrust.
“Fuck, you’re so fucking hot, Deku. I need to fill you up.”
Izuku almost came at the slip of the old nickname—reserved only for special times like these—and at the downright dirty talk. He made a mental note to save these moments, this Katsuki, to revisit them at a later date. He’d have to ask Katsuki to top more often.
“Then do it, fill me up,” Izuku panted, one hand squeezing the pillow and the other grabbing at whatever part of Katsuki he could reach behind him. “Kacchan, please.”
He heard Katsuki curse, his tongue lapping at Izuku’s ear, neck, and the sweaty tufts of his hair. “I’m coming, fuck, I’m coming!” he screamed as he came inside Izuku, the pace of his wrist unrelenting.
At the unfamiliar warmth coating his insides, Izuku let out a crazed growl. His eyes rolled as he came harder than he’d come in a while, painting Katsuki’s bandaged knuckles and his chest.
“Oh my god,” they both said at the same time, panting.
Katsuki pulled out, and Izuku hissed at the sudden emptiness. He tried to hide his disappointment.
“It sucks, huh?” Katsuki teased.
Izuku turned around to face him properly, trying to find a comfortable position amidst all the fluids on the bed.
“You could’ve at least warned me!” Izuku pouted jokingly. “Or stayed inside a little bit more, since you’re never… you know—there.”
Katsuki snorted and grabbed him by the hip to pull him close. “Now you get a taste of your own medicine,” he said, pecking his nose. Izuku bit him on the cheek in response.
“You’re ridiculous,” Katsuki said softly, resting their foreheads together. Izuku hummed and closed his eyes.
“Thank you,” Katsuki said suddenly, his voice barely above a whisper.
“For what? I enjoyed this too, you know.”
“I know,” Katsuki chuckled. “Well, I sure hope so, at least, tsk, I’m glad to know I still got it.”
“Of course you still got it! Kacchan is amazing in everything he does!” Izuku said, pressing even closer to Katsuki.
“Heh, I know, but nah, I still prefer bottoming. This whole thing was too much work,” Katsuki teased.
“Kacchan!” Izuku snorted, but didn’t press any further.
“You know you don’t need to thank me.”
“I know, but I wanted to,” Katsuki admitted, kissing Izuku on the lips.
Izuku melted into the kiss, pushing his tongue inside as he softly held Katsuki’s cheek. He pressed him onto the pillow, caging him from above. “Will you let me take a look at your arm now?”
Katsuki pouted and avoided Izuku’s pointed look from underneath him. “Okay…”
“Good boy!” Izuku said before kissing his nose.
Oh, how he loved taking care of his Kacchan.