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The knock on Izuku’s door nearly made him jump out of his skin. He slammed the nightstand drawer shut, tossing a large orange dildo onto the bed and throwing a pillow over. Just in case the answer was, god forbid, a teacher, he lifted the window from cracked open to wide open, shivering at the cold air that rushed in.
Another knock. “I know you’re in there, nerd.”
He relaxed a little and lowered the window again. “What’s up, Kacchan?” he said, opening the door.
“The whole fucking hallway reeks because of you. Can’t you take that shit outside?”
Izuku shrugged. “The window’s open.”
Katsuki glared at him.
“Ok, fine, I’ll be more careful.” Izuku sighed.
“Why do you smoke that stuff anyway?”
Izuku grabbed a towel from the closet. “Mostly because it’s relaxing, helps me unwind after a long day. It can be fun, too, if you do it with the right people.”
Grimacing, Katsuki exhaled through his nose.
“Uh, do you want to come in?”
He rolled his eyes and stepped into the small room. Izuku closed the door and shoved the towel up against the narrow crack above the floor. “That should help with the smell, at least a little bit.”
Katsuki’s eyes lingered on the half-smoked joint on the ashtray on the desk.
Izuku smiled and grabbed it. “So, you want to try some?”
“Fuck no. I just told you it smells awful.”
After taking a drag, Izuku leaned over the desk and blew smoke out the window. “Then what are you doing in my room?”
Katsuki looked away, crossing his arms.
The room felt too quiet all of the sudden. Izuku bit his lip. “Sorry, we can just…I’m glad you’re here.”
“Give it to me.” Katsuki reached toward him.
A slow grin formed on Izuku’s face. “You’re sure? You really don’t have to, I don’t want to feel like I pressured you—”
“Shut up and give me the joint, Deku.”
Izuku concealed his amusement and passed the joint over. “Breathe in slowly, just for a couple seconds, then hold it before you breathe out.”
Katsuki brought it to his lips and sucked in for a good five seconds. Izuku tensed. After just a few seconds of holding his breath, Katsuki’s eyes widened and he coughed, shoving the joint back in Izuku’s direction.
Chuckling softly, Izuku handed him a bottle of water. “And that’s why I said a couple seconds.”
“Fuck—” Katsuki kept coughing bewteen sips of water. “How—shit, that’s terrible. My throat—”
“I know, you get used to it eventually.”
When the coughing finally subsided, Katsuki’s face was flushed.
Izuku couldn’t help but stare. It was so rare he got to see Katsuki caught off guard like this. “There’s always edibles, if you want to get high but don’t like to smoke.”
Katsuki took a deep breath. “You got any?”
“No, sorry. Todoroki might, if you really want to try some.”
“Is it supposed to feel kinda…light? My head is really—”
Izuku quickly hopped onto the bed. He really didn’t want Katsuki passing out or falling over. “Come up here, you should sit.”
Without so much as a snide comment, Katsuki sat beside him on the bed. “You really enjoy this?”
“Well, I usually do a lot more than that.” Izuku laughed.
“Another hit might destroy my lungs.” Katsuki smiled.
Izuku lifted the joint and raised his eyebrows. “There’s other ways, if you still want to try.”
“Like what?”
“It’s called shotgunning. Another person breathes the smoke into your mouth, it makes it less harsh. It’ll take you longer to get really high, though.” Izuku was blushing as he spoke, words tumbling out of his mouth faster than his brain could keep up.
“Alright. Do it.”
Izuku looked him in the eye. He hesitated, but lifted the joint to his lips and took a hit. He hadn’t considered the space between them. Shit. Smoke in his mouth, he grabbed Katsuki’s arm, leaned in, bringing their faces just a few inches apart, and blew into Katsuki’s mouth.
“Sorry, I kinda fucked it—”
Katsuki breathed out. “Wow, it didn’t feel like I was gonna die.”
Izuku smiled. “Wanna do it again?”
Katsuki nodded.
Shifting closer, so their legs brushed against each other, Izuku sucked on the joint, held the smoke, and tilted his head before leaning in. Katsuki’s eyes fluttered closed as his lips parted. He’s so beautiful. Izuku breathed out slowly, letting the smoke flow into Katsuki’s mouth in a steady stream.
Katsuki breathed out and licked his lips. “Again.”
They were still so close. Izuku didn’t question it and repeated the process. This time, he let his eyes close as he leaned in. His lips ghosted over Katsuki’s as he exhaled. His hand on Katsuki’s arm tightened. When he opened his eyes, he became acutely aware of how tight his pants felt and pulled his knees up, looking away from Katsuki.
“Why’re you so red?” Katsuki’s words had less bite than usual.
“I’ve just had a lot, uh, I’m pretty out of it.” What else was he supposed to say? Sorry, Kacchan, weed makes me insanely horny so our lips touching for one millisecond gave me a massive fucking boner.
Katsuki grunted and leaned his head back against the wall. He reached for the pillow at the end of the bed, and before Izuku could get the words out, he grabbed it. The orange dildo was revealed. All six inches of smooth, traffic-cone colored silicone were on display.
Their eyes met, and Izuku thought his heart might give out. “Fuck—uh, Ururaka—shit, I-she—she and I—”
Katsuki smiled. “You expect me to believe this thing belongs to pinky and that she left it in your room?”
“I—no, I mean, she did. Let me just…” There was no good way to reach it, so Izuku just resolved himself to total humiliation and leaned over Katsuki’s lap. He snatched it and tossed it into the nightstand drawer.
“She was fucking herself with a dildo in your room?”
Izuku nodded. His freckles were almost completely eclipsed by the blush covering his face.
“You have a dick, why wouldn’t she just ride that?”
“She didn’t…want to.” Izuku was a terrible liar when he was high.
Katsuki hadn’t stopped smirking since he moved the pillow. “Bullshit.”
“Fine. It’s mine, ok?”
“Did I interrupt you’re fucking jerk session?”
Izuku made a disgusted face. “No. What? You just saw it, it wasn’t…used.”
“Didn’t get that good of a look. I mean, I saw how small it was, and you picked a nice color, but—”
“Stop. I’m not talking about this. We’re both too high and you’re gonna have a really bad time if we start arguing.”
Katsuki sulked, picking at one of his nails.
Izuku’s head was spinning. “Wait, small?”
“Do you always jerk off or whatever when you smoke? Is this like some kinda ritual for you?”
“Not really. I mean, sort of, I guess. Smoking makes me, um, really relaxed.” Izuku cringed at his own explanation.
Katsuki hummed, and it sounded like agreement. Agreement with what? “Have you ever had sex high?”
Izuku forgot to blink for a minute. After an awkward pause, he answered, “Yeah.”
Katsuki ripped a hangnail off with his teeth then dropped his hand into his lap. “Seems like it would suck, like it’d be overwhelming in a bad way.”
Was this normal? Did they have conversations like this? They absolutely did not but Katsuki was acting so chill about it that it had Izuku questioning his own memories. “It’s good, at least I think it is. Everything is turned up to 11. Touching is, uh, really intense when you’re like this.”
“Hence the dildo.” Katsuki was smirking a little still, but not nearly as much as before.
“Yeah.” Izuku’s voice was barely audible.
“I can go if you want. I don’t want to cockblock you from yourself, or whatever.”
Izuku laughed. “No. Don’t go. It’s not like I’m gonna die if I don't.”
“I want more.”
Izuku’s mouth was suddenly very dry. “Huh?”
“More weed, idiot.”
“Oh, r-right. Sure.” Izuku picked the joint up again, and Katsuki watched as he took a long hit. Izuku wasn’t thinking when he placed a hand on the side of Katsuki’s face and leaned in. He wasn’t thinking when that hand slid back to feel how soft Katsuki’s hair is. He breathed out, lips just millimeters apart. They touched, mouths right on top of each other, but there was no pulling away until the smoke was gone.
Katsuki breathed out, blowing smoke back at Izuku, who ignored it. He was too busy staring at Katsuki’s face, which was still right in front of his. He was rock hard again, not that he had fully gone soft during the exchange with the dildo.
“Feels good,” Katsuki said softly, staring into Izuku’s eyes. “Touching. You were right.”
Izuku’s hand on the back of his head twitched. “S-sorry.”
Katsuki groaned and leaned forward faster than Izuku could process it. There was Katsuki’s mouth again, open and wet and so soft. He kissed like this wasn’t their first time, confidently shoving his tongue into Izuku’s mouth. Izuku’s limbs turned to liquid and he moaned softly, letting Katsuki in with hesitation.
When Katsuki pulled back, they both swallowed, breathing hard. Izuku was staring at Katsuki’s lap, where his jeans were obscenely tented.
“Does this stuff make you, like, super horny?” Katsuki asked. His hand was on Izuku’s leg, keeping him close.
Izuku nodded. “It makes people do weird things sometimes. I-we can forget about it.”
Something like hurt flashed across Katsuki’s face. “I’m not gonna forget shit.”
“O-ok. Do you want— I mean, I could…” Izuku looked down at Katsuki’s lap again.
Katsuki huffed and pushed Izuku back onto the bed. They faced each other, legs tangled up, noses almost touching. Izuku leaned in this time, kissing Katsuki softly. “Is this ok?” He whispered.
Katsuki slid one arm around Izuku, pulling him as close as possible. “Don’t be stupid. I kissed you first.”
“Didn’t know if it was just the weed. I’m serious, some people act different when they’re high.”
“I don’t do anything I don’t want to. You know that, Deku.”
Izuku’s eyes widened. “Did you want to do this before?”
Katsuki chewed at his lip. “Something like that, yeah.”
“Me too.” Izuku whined as Katsuki’s leg wedged itself between his own. His cock was straining against the zipper of his jeans, leaking under layers of fabric. He tired his hips, unable to resist, and inhaled at the pressure of Katsuki’s thigh rubbing against him.
Katsuki’s hand slipped under Izuku’s shirt and rested on his lower back. “You wanted me?”
“For-for years. Since we were…” Izuku trailed off.
“Fuck,” Katsuki breathed, and Izuku pressed his hips forward again, seeking more friction. “Yeah, get yourself off. Get me off—fuck, just like that.” He squeezed Izuku’s ass, forcing their cocks to slide against each other.
Fear suddenly gripped him. Katsuki looked so blissed out right now, grabbing Izuku’s hip and encouraging him to grind more. “Are-are you gonna make fun of me if I— is-is this a joke?”
“Shut up.” They were practically drooling into each other’s mouths, trying to consume one another. Katsuki’s hands fumbled with both of their zippers.
A large, warm hand wrapped around his bare cock, and he groaned into the kiss. When he looked down between them, Katsuki’s hand was wrapped around both cocks, jerking them off at the same time. Izuku’s stomach flipped. Katsuki’s cock was huge, at least two inches longer than his and thicker than the orange dildo. Had he ever taken a cock that big? Kirishima was nothing to scoff at, but Katsuki even had him beat.
“Got something to say?” Katsuki asked, rubbing his thumb over the wet tip of Izuku’s cock.
Izuku sucked in a breath. “You’re big.”
Katsuki hummed. “Bigger than your pathetic dildo, yeah.”
“It might not fit,” Izuku mumbled, cock twitching at the thought.
“In your slutty hole? It’ll fit. It’s gonna ruin you for anyone else.” Katsuki’s hand disappeared and he shifted so Izuku was on his back and he was sitting between his legs. He pulled Izuku’s pants and boxers off.
Bright red, Izuku held out his hands. “Wait—”
“You don’t want me to suck you off?”
“I-I do, but you don’t have to. I can do you, or we can just—”
“I want to suck it, Izuku.”
Izuku’s mind went blank. “Ok.”
Katsuki laid down between his legs and licked over his balls, up his cock, then sucked the tip into his hot mouth. Izuku shuddered, holding back a moan. His hands curled into fists at his sides.
“Lube?” Katsuki said.
Izuku’s hand shot toward the nightstand and grabbed a half-empty bottle from the drawer. “I can do—”
It was too late. Katsuki was already pouring a generous amount onto his fingers. He pressed his index and middle finger to Izuku’s hole and moved them in a slow circle. Izuku took a shaky breath and spread his legs a little more. Katsuki continued, sucking Izuku’s cock as he applied gentle pressure to the outside of his tight hole. Izuku’s cock twitched in his mouth and he pressed one finger in.
Izuku reached down and grabbed Katsuki’s hair without thinking. Katsuki moaned around his cock, sending soft vibrations through him. With a long, slow lick, Katsuki pulled off his cock. Izuku let out a breath. He was getting close. His stomach was tight and the agonizing push and pull of Katsuki’s finger inside him made him squirm. Rubbing his thigh, Katsuki slid another finger in. He leaned down, pushing Izuku’s t-shirt up, and dragged his tongue over Izuku’s nipple.
“Off,” he said, grabbing at Izuku’s shirt.
Izuku yanked it over his head, now completely naked. His blush traveled all the way down his chest to where Katsuki had started sucking on his nipple. Izuku’s hole clenched, gripping Katsuki’s fingers. “You always sensitive here or just when you’re high?” Katsuki asked, his face so close to Izuku’s yet again.
“Always,” Izuku mumbled.
Katsuki licked the other nipple, earning a quiet moan from Izuku. “Such pretty tits.”
Izuku didn’t even know if he heard him right. He just whined wordlessly and arched his back. Katsuki’s fingers scissored inside him, stretching him open. “Kacchan—”
“Is Kacchan making you feel good?”
Izuku blinked. “Y-yeah. Kacchan feels so good.”
Katsuki moved on from the nipple to Izuku’s neck, sucking at it eagerly, and added a third finger. “You want a nice, big cock, baby? You had your little toy out, so you must’ve been thinking about it.”
“I want Kacchan’s cock.”
Suddenly, his hole was empty. He whimpered as Katsuki pressed the tip of his cock against his ass.
“W-wait, take your clothes off.”
Katsuki froze, then sat up. He pulled his shirt off, then briefly got off the bed to lose his pants. Naked, he crawled back on top of Izuku. “You want to see me that bad?”
Izuku nodded as Katsuki lined his cock up again. He bottomed out in one thrust. Izuku’s huge green eyes stared up at him, watery and frozen. It burned a little, for a second, then became a satisfying stretch, and finally a feeling of fullness Izuku had never experienced. Katsuki was definitely bigger than Kirishima.
Katsuki lips parted. He glanced down at where they were joined. “Like a fucking vice—shit, did I hurt you?”
Izuku grabbed Katsuki’s arm. “No, it’s just a lot. Y-you can move.”
With a pained sigh, Katsuki pulled out halfway, then slid back in very slowly. Izuku was panting. His cock leaked onto his stomach, throbbing every time Katsuki fucked into him. Katsuki’s cheeks were dusted with pink, and every few seconds he let out a clipped sound. “I’m not gonna last,” he whispered, leaning down to kiss Izuku.
“S’ok.” Izuku raked his nails down Katsuki’s back as they kissed. He comes with Katsuki’s tongue in his mouth and the tip of Katsuki’s cock hitting the deepest spot anyone’s ever touched inside of him. It caught them both by surprise.
Katsuki’s eyes widened as he looked down at the cum splattered over Izuku’s stomach. “Better than a toy?” He smirked.
Izuku nodded, wincing as Katsuki slammed into him over and over. Katsuki’s expression hardened as he set a brutal pace. Izuku’s cock refused to soften with Katsuki’s cock keeping him full and twitching with aftershocks of his orgasm.
“M’gonna come inside,” Katsuki said into Izuku’s neck.
Izuku nodded. “Please, Kacchan.”
With a low groan, Katsuki’s cock throbbed as he pressed all the way inside, releasing a torrent of cum. Izuku swore he could feel the warmth flooding into him. They stayed locked together, breathing in sync for a few minutes. Izuku ran his fingers through Katsuki’s hair, running his nails over his scalp. When Katsuki sighed, Izuku clenched around the cock still inside him.
“Need more, baby?” Katsuki lazily pulled out, then slid back in. “How many times do you usually come on that dildo?”
Izuku blushed. Katsuki was above him, looking down. “A few. Depends how I feel.”
“How do you feel now?”
Izuku held back a grin. “Like I need Kacchan to fill me up some more.”
Katsuki pulled out, which was met with a sharp sound from Izuku. He sat up, leaning against the wall beside the bed. “Come on, I know you can ride it.”
Too aware of himself but hazy enough from the weed to not care, Izuku climbed onto Katsuki’s lap. Two warm hands immediately grabbed his waist, and Katsuki’s mouth was on his neck in seconds. In a smooth, practiced motion, Izuku guided Katsuki’s cock into him. The wet sound of all the cum and lube made him blush harder.
“So much cum inside and you still want more,” Katsuki muttered against his lips.
Izuku started by grinding, moving his hips to position Katsuki’s cock against all the right spots. He felt himself squeeze and contract, which got a soft sigh out of Katsuki. One of the hands on his waist moved to grab his cock. Izuku inhaled as Katsuki stroked up, swiping his thumb over the tip. Their eyes met, and Izuku nodded. “T-talk me through it,” Izuku whimpered, so quiet it was almost inaudible.
Katsuki’s red eyes lit up. “You like when I touch you here, Deku?”
Izuku nodded again, circling his hips. He wasn’t really moving up and down, just enjoying the over-filled sensation that Katsuki’s unreasonably large cock provided.
“Feels like you’re just warming it, I thought I told you to ride me.”
Mewling, Izuku bounced one, twice. He was shaking, closer to coming than he should’ve been so soon after the last time. The thumb on his waist rubbed slow circles against his skin.
“It’s ok, baby, just sit still and let Kacchan make you come. You look so fucking cute, whimpering and moaning for me.” He squeezed the head of Izuku’s cock, precum leaking onto his fingers. “Once you come like this, I’m gonna fuck you again—shit.”
Izuku’s insides throbbed around Katsuki’s cock. A loud whine, his thighs tensing, and he came onto Katsuki’s hand. Some shot onto Katsuki’s torso, too, and Izuku had a fleeting thought to lick it off. The hand on his dick didn’t loosen up, but stroked him again. “Kacchan,” he yelped.
“Your fucking—you’re squeezing my dick—Izuku,” Katsuki’s eyes closed for a second, and warmth spilled into Izuku’s ass.
They stayed in that position for a few minutes, breathing and staring at each other until Izuku peeled himself away and laid down. Katsuki was looking down at him again, sliding into him with much less resistance now that he was filled with two loads of cum.
“That feel good, baby? I’ll go slow.” Katsuki pressed urgent kisses to the side of Izuku’s neck as he rolled his hips.
Izuku was shaking like a leaf. He was oversensitive, and the drag of Katsuki’s cock inside him, the feeling of Katsuki’s abs brushing against his own aching cock, made his mind go completely blank. Katsuki was all that mattered, the way Katsuki was making him feel so good, better than a toy, better than anyone he had done this with before. An arm wrapped around his waist, holding him against Katsuki, keeping them pressed together.
“So deep, baby, you take this thick cock so well.”
Izuku tried to choke out a reply and failed, settling on a strangled, wordless noise. Katsuki smiled against his neck, then kissed his mouth. Without warning, Izuku gasp against Katsuki’s lips and came with his cock squeezed against Katsuki’s torso. Warm liquid settled onto his skin, cooling quickly and becoming a sticky layer between them.
“Can I—Can I keep going? Just—just until—” Katsuki was panting, drooling into Izuku’s mouth. “Just let me fill you up one more time. Please, baby—”
Izuku nodded and wrapped his legs around Katsuki’s hips. “Don’t stop, Kacchan.”
Katsuki groaned loudly, hips moving mechanically, fucking into Izuku like he was built for it and nothing else. It only took about three more thrusts, with Izuku’s thighs squeezing him and Izuku’s nails digging into his back, for Katsuki to come deep inside, shaking and practically shoving his tongue down Izuku’s throat.
Izuku seized, nails nearly drawing blood from Katsuki’s shoulders, and came one last time with a weak moan. His face was wet with tears as his cock jerked, thin, clearish liquid dripping from it. He had nothing left.
“You came just from me filling you up?” Katsuki asked, wonder in his voice.
Izuku sighed. “Felt too good.”
Still sheathed inside, Katsuki pressed himself up on his forearms to look down at Izuku’s tear-stained face. A stray drop of water fell from his eye, down his temple. A twinge in his lower belly made Katsuki think he could go again, somehow.
“Tired.” Izuku’s eyelids were already falling.
Katsuki pulled out, and Izuku curled into him, head against his chest.
“You think you’ll ever smoke again?” Izuku asked.
Katsuki stroked his green curls. “You don’t need to get me high to fuck you, nerd.”