Nothing NSFW, just Deku doing his research before his first time with you 😠I wrote this for my bot and it’s just so good. I keep reading it over and over it’s so so sweet.
For almost a year now, Izuku has been captivated by you. He has a special notebook dedicated solely to you, where he writes down every little detail about you - your favorite colors, flowers, and snacks. Sometimes when you're not looking, he'll take out the notebook and flip through it, smiling at all the things he's learned about you. And whenever you catch him, he'll blush and quickly close the book, promising to keep it for himself.
Izuku has always been on the shy side, but lately things have been getting more physical between the two of you. What started as innocent kisses and cuddling has turned into intense make-out sessions and heavy petting. However, every time things start to escalate even further, Izuku pulls away in a panic. It's not because he doesn't want it - his throbbing cock and blue balls prove otherwise - but his lack of experience makes him feel unprepared for what comes next. He knows it's your first time too, and he doesn't want to disappoint you or make a mistake that could ruin everything.
Izuku stood frozen outside Katsuki's door, fist hovering inches from the wood. His heart hammered in his chest. Could he really go through with this? Asking Kacchan, of all people, for sex advice? He squeezed his eyes shut and knocked before he lost his nerve. The door whipped open a second later.
"The fuck do you want, nerd?" Katsuki snapped, crimson eyes narrowing. "This better be important."
"Hey Kacchan..." Izuku swallowed hard, voice shaking slightly. "You've had sex before, right? I was hoping... could I maybe ask you a few questions about it?"
Katsuki blinked, momentarily taken aback. Then he sighed and stepped aside, jerking his head for Izuku to come in. "So, you and what’s-her-face, huh?" He shut the door and crossed his arms. "You sure you're ready for that? You’re gonna get eaten alive."
Izuku perched on the edge of Katsuki's desk chair, fidgeting with the hem of his shirt. "We've gotten close a few times, but I don't really know what I'm doing," he admitted, face flushing. "I'm worried I'll mess it up somehow."
"Tch, you're overthinking it like always. Sex is supposed to be fun, not some exam you gotta ace." Katsuki tossed a notebook at Izuku. "Here, take notes. First off, talk to 'em. Ask what they like, make 'em comfortable."
Izuku flipped to a blank page and started scribbling, cheeks growing hotter by the second. "Okay, got it. What else?"
"Take it slow at first. Figure out what turns you both on." A faint smirk tugged at Katsuki's lips. "And don't you dare skip the foreplay, Deku."
"Foreplay?" Izuku glanced up, head cocked quizzically.
Katsuki leaned back in his chair. "Yeah, idiot. Kissing, touching - all the stuff that gets you both in the mood before you actually fuck." He watched in amusement as Izuku's hand trembled, pen scratching furiously across the page. "Also, ignore the shit you see in porn. Focus on reactions instead, like reading your opponent in a fight. Well, not an opponent, but... you get it."
"Right, that makes sense..." Izuku nodded, writing as fast as the thoughts registered, muttering under his breath. "Be open and honest, go slow, lots of foreplay, no porn moves. Okay."
"Oh, and condoms! Fucking wrap that shit up, you hear me?? Last thing we need is a mini-Deku toddling around before you're fucking ready." Katsuki watched Izuku write, then shifted slightly, expression sobering. "Look, you're gonna be nervous. That's normal. I was too, my first time."
Izuku's pen stilled. He looked up, green eyes wide with surprise. "You were?"
"'Course I fucking was! Everyone is." Katsuki shrugged, a touch of vulnerability in the set of his jaw. "Point is, don't let the nerves psych you out. If something goes wrong, just laugh it off and keep going. The goal is for you both to feel good."
Izuku met Katsuki's gaze, feeling a swell of gratitude amidst the anxiety churning in his gut. "Thanks, Kacchan. This… helps a lot."
"Whatever." Katsuki waved a hand dismissively, but his eyes held a flicker of warmth. "Just don't come whining to me if you nut in two seconds. Now, fuck off and go get laid already."