More than one week had passed since the last time Izuku had gone into heat. Everyone was keeping the omega's secret and so things were relatively calm, for once.

Izuku was currently doing his homework on Katsuki's bed. He was laying on his stomach as he did so, an oversized black t-shirt and boxers being the only thing covering his body. Katsuki was on the bed as well, sitting against the headboard. It was Wednesday afternoon and they had only finished classes a hour ago.

Katsuki sighed as he closed his maths book. He had already done his homework another day when Izuku was training with All Might and only needed to learn some maths lesson for tomorrow. But, right now, maths wasn't the main thing on his mind. Not when Izuku's perfect body was right under his eyes...

He put his maths book away and leaned over Izuku, his lips finding the omega's nape as his hands moved around Izuku's slim waist.

Izuku hummed in response, a pleasant sight escaping his pink lips when Katsuki began to gently caress his sides. "What are you doing, Kacchan?" He asked even so he perfectly knew what Katsuki was planning to do.

During the last few days, they had kept sleeping together whenever they could. It seemed like they just couldn't keep their hands off of the other. After all, they were two teenagers who had just discovered sex, and the fact both alphas and omegas naturally had an especially high sex drive didn't help things in the slightest...

"Nothing." Katsuki smirked as he kept kissing Izuku's nape, his hands slowly trailing further down the omega's body. A low moan slipped past Izuku's lips when Katsuki grabbed two handfuls of his ass, the alpha squeezing the generous flesh inside his large palms while licking behind Izuku's ear.

"I have to do my homework..." Izuku said even so he still arched his back under Katsuki's touches. He just couldn't help it. What Katsuki was doing to him felt good and so he couldn't resist wanting more.

"You can copy mine later." Katsuki stated and apparently it was enough to convince Izuku, because the omega didn't wait anymore time to push his homework away. He closed his emerald eyes and let himself appreciate Katsuki's attention, loving the sensation of his alpha's hands and lips against his skin.

"I love your body." Katsuki murmured into Izuku's ear as he slowly removed the omega's underwear, sliding the garment along Izuku's naked legs until he could throw it somewhere on the bed.

"Only my body?" Izuku inquired and Katsuki let out a low growl in response. "Shut up. You know I'm obsessed with you, not only your body."

His answer made Izuku smile. The omega loved it when Katsuki told him just how much he loved him. "What do you like the most about me?" He asked as Katsuki raised his hips, his ass now in the air while Katsuki's lips slowly trailed down his back.

"You're not like any other omega." Katsuki seductively whispered. His voice was low and deep, incredibly sexy in Izuku's ear. "You're beautiful, but also smart and strong." He continued to say as he kissed along Izuku's spine, loving the shivers of pleasure that travelled down the omega's body in response. "You know what you want and will stop at nothing before having it."

"Kacchan..." Izuku moaned when Katsuki's lips unexpectedly reached his entrance. Slick was already oozing out of him and leaking down his thighs, the sensation of Katsuki's tongue lapping it up triggering his whole body to heat up. "Oh god..." He whimpered as he buried his face into the bed.

It was his first time being eaten up while being conscious and not in heat, and so he couldn't help but feel shy. Katsuki's tongue licking his entrance felt strange and embarrassing, but also incredibly pleasurable. Izuku couldn't stop mewling nor producing slick even if he wanted to.

"Damn, you taste so good." Katsuki growled out and Izuku's heart jumped inside his chest at the words, a loud moan suddenly leaving his lips when Katsuki's tongue pushed past his tight ring of muscles. "Kacchan..!" He called out as Katsuki massaged his insides with skills, his whole body trembling in pleasure.

Katsuki was holding one of Izuku's asscheeks in each hand, spreading them open while burying his face between them. He kept eating Izuku out and loved how delicious the omega's slick tasted, his cock throbbing in need each time Izuku let out one of his adorable mewl. "Want more?" He eventually couldn't hold back anymore and flipped Izuku around, his crimson eyes boring into Izuku's emerald irises as he seductively rubbed his still clothed erection against the omega's ass.

"Yes." Izuku breathlessly answered. He was so turned on right now that the only thing on his mind was to finally have Katsuki inside him, to finally feel the divine pleasure only his alpha could give him...

However, Katsuki didn't even have time to unzip his pants that a knock was heard before the door of their room suddenly bursted open, two people barging inside without any warning.

"Hey, Bakugou! Midoriya!" Kaminari smiled brightly with Kirishima following behind him.

"Fuck." Katsuki's first reflex was to promptly pull the cover on top of Izuku's body. There was no way he'd let anyone other than him see his omega half-naked. "Get the fuck out!" He then shouted loudly at the intruders, the rage in his voice impossible to miss.

"Sorry!" Kirishima's eyes widened as he immediately turned his back to the bed.

Kaminari did the same, a dark blush covering his cheeks. "Oh god! You need to lock the door when you do that!"

"What fuckers enter without knocking?!" Katsuki angrily replied. He hadn't though about locking the door because no-one was supposed to bother them at this hour, even less without any further notice.

"I did knock!" Kaminari exclaimed.

"But you entered without waiting for the damn answer!" Katsuki yelled back. He couldn't believe idiots like Kaminari existed and wanted nothing more but to smash the beta's face against the wall, right at this instant.

"Sorry, guys. We won't do it again." Kirishima tried to calm things down. They were at fault for entering the room of a mated couple without asking permission first. They shouldn't have done it.

"I-it's okay, you couldn't have known..." Izuku timidly said. He had managed to put his clothes back but still felt like dying in embarrassment. Although Kaminari and Kirishima had probably seen nothing more than Katsuki on top of him, being caught in this situation was already mortifying enough.

"So, what do you fucking want?" Katsuki asked with a growl. Now, even if Kaminari and Kirishima left, the mood was already ruined. Both his and Izuku's erection had gone soft in the panic.

Kirishima hesitantly turned around to look at them. "We're going to gym gamma, want to come?" He sheepishly asked. "Mr. Aizawa gave us the authorisation to use it this afternoon. We can even use our quirks since teachers won't be too far away to watch us."

"Todoroki is coming as well." Kaminari added.

Katsuki looked at Izuku in a silent question. Now that they had been cock-blocked, training was probably the best solution to work out their frustration. "Why not..." Izuku answered. Improving their fighting skills was always a good thing to do, after all.

"Go first, we'll join you." Katsuki grunted. So much for a fun afternoon filled with sex, he thought.