The next morning, it was the sound of the alarm clock that woke them up.

The annoying ringtone resonated in the bedroom loudly, indicating it was time to get up and successfully giving them an headache. "Fuck." Katsuki let out a deep groan before destroying the alarm clock with an explosion. He didn't have the energy for this shit right from the morning.

They had kept going at it until late yesterday evening. Katsuki's rut had last all day plus a part of the night. They only went to sleep at 3 a.m., both being completely exhausted but still feeling particularly satisfied... they had lost the count of the number of orgasms they had given each other.

"Hey." Katsuki murmured in his low, deep voice as he wrapped his arm around Izuku's slim waist. They were laying on the bed facing each other, crimson orbs locking with emerald eyes in the morning light.

"Morning, Kacchan..." Izuku softly whispered in response. The omega was still feeling quite tired from yesterday's events. Helping Katsuki with his rut had really been exhausting, after all. The alpha hadn't given him even one instant to rest the entire time it had last... still, Izuku didn't regret anything.

"You okay? How is your body?" Katsuki asked as he gently caressed Izuku's naked hips. Red hand-shaped marks were covering them, contrasting with the pale colour of Izuku's delicate skin.

"It's fine..." Izuku timidly answered. He did feel a little sore but it was nothing he hadn't already experienced after a rough training.

"I didn't hurt you?" Katsuki insisted and Izuku slowly shook his head. "No, you didn't. I prefer when you're more gentle, but I didn't mind seeing this side of you either..." He confessed with an adorable blush covering his freckled cheeks. Seeing Katsuki act this dominant had really aroused him.

Katsuki smirked at Izuku's words. "Yeah?" He inquired as he let his crimson eyes freely roam over Izuku's perfect body. His omega looked absolutely delicious, right now. Hickeys and bite marks were scattered all over his body, rendering him even more sensual and gorgeous than he usually was.

"You look fucking hot, covered with my hickeys." Katsuki couldn't help but comment. Seeing his marks on Izuku's body was satisfying him so damn much. "Everyone will know you're mine, like that." He let out a low possessive growl at the thought and Izuku purred in answer.

"Kacchan..." The omega called before pressing his lips against Katsuki's, unable to resist the temptation. Katsuki didn't seem to mind as he tightened his grip around Izuku's slim waist and began to move their mouths together. They shared a slow but passionate kiss, their eyes closing as their tongues lazily danced together, both melting into the intimate moment.

"We have to get ready for school..." Katsuki murmured with a soft groan once they parted lips. He'd rather make out with Izuku all day than to have to deal with annoying extras, but they had already missed yesterday's classes. They couldn't afford to miss more.

"I need to take a shower." Izuku stated as he left the bed. They had been too exhausted to take one yesterday's night before finally sleeping so the scent of slick and cum still was covering his skin.

"Me too. Let's take one together." Katsuki smirked as he followed Izuku to the bathroom.

They showered together, taking turns to wash each other's body. Katsuki caressed Izuku's every body parts with incredible gentleness, being cautious to not harm the tiny omega after the rough way he had treated him yesterday. During the whole time Izuku felt flutters inside his stomach, soft giggles occasionally escaping his pink lips when Katsuki's touches tickled him. They eventually finished to shower and dried themselves, before getting dressed and soon heading toward the common area to have a quick breakfast.

"Hey, Midoriya! Bakugou!" People noticed them as soon as they entered the lounge.

"Where were you, yesterday?" Someone inevitably asked, the question making Izuku blush as the omega nervously wondered what they should answer. It wasn't like they could tell the truth; it would be quite embarrassing to admit...

"Not your fucking business." Katsuki didn't bother being nice, as usual. He couldn't care less if he was being rude or not; people had to mind their own business.

"As your class delegate, you have to warn me if you don't go to class so that I can explain it to the teachers." Iida seriously stated and Katsuki rolled his eyes in annoyance. "Shut up, four eyes. I don't give a shit." He grunted before heading toward the kitchen, hands in the pocket.

"Kacchan..!" Izuku gasped. "Sorry, Iida." The omega quickly apologised to his friend. He knew it was how Katsuki always talked but other people could easily be offended by the blond's rude behaviour. "We'll do it if it happens again." Izuku promised.

He was about to join Katsuki in the kitchen, when Kirishima suddenly called him. "Hey, Midoriya! Come here!" The redhead motioned him to come over where he was, Kaminari by his side.

Izuku happily went to them. They both knew he was an omega so he could talk freely with them. It was nice having friends who knew his secret. "What is it?" He smiled as he arrived in front of them.

Kaminari checked if someone else was listening to their conversation before quietly asking. "You went into heat, yesterday?"

Izuku shook his head at the question. Of course it would be the first thing they would think about since Katsuki and him had missed yesterday's classes but, for once, it hadn't been because of him. "Actually, it was Kacchan who went into rut." He whispered his response.

Kirishima and Kaminari's eyes slightly widened at the information. "Really? You spent his rut with him?" Kirishima couldn't resist asking. He was an alpha himself and had had his first rut not too long ago. He knew what spending his rut with an omega would lead to.

"Yes..." Izuku timidly confessed. They both already were aware he spent his heat with Katsuki, so there was no point lying to them about this either...

"That explains all the hickeys." Kaminari blurted out.

"O-oh." Izuku's whole face turned a cute rosy shade at the words. "You can see them..?" He slightly panicked as he fidgeted with the collar of his shirt. He had thought he had made sure they couldn't be seen, but some love bites on his neck were hard to hide. He wished he had some makeup to cover them with but he didn't, and the only girl he knew that used makeup was Mina... he clearly wasn't going to ask her for makeup to hide Katsuki's hickeys.

"Only if you pay attention, don't worry." Kirishima quickly assured. You couldn't guess it was hickeys if you didn't already know. Plus, Izuku looked so pure and innocent that nobody would even think about this.

"So, you had sex?" Kaminari asked and Izuku blushed an even darker shade of red.

"Well, we didn't go all the way..." He timidly answered. Katsuki's rut hadn't been the right time for them to have sex for the first time. Katsuki wasn't totally in control at the moment and he wouldn't have been able to be gentle and patient, like Izuku wanted him to be for their first time.

But, now, it was only a question of time before they took the last step to their relationship. They had already done the majority of things that came before sex. Going all the way would come sooner of later, and only thinking about it was making Izuku feel as nervous as impatient... he couldn't wait to fully connect with Katsuki.

"Are you finally together?" Kirishima curiously inquired. He had noticed their relationship had evolved. The way they looked at each other was even more intense than before. Their gaze were now filled with passion and hunger, the love they felt for the other clear as day inside their eyes.

"Yes." Izuku smiled softly. "He said he's my alpha and I'm his omega..." He confessed in a voice that could only convey how much it meant to him.

"You accepted him as your alpha? Really!" Kirishima exclaimed. For an omega to accept someone as their alpha had so much more meaning than to simply accept to go out together. It meant they planned to form a pair, and forming a pair was a life-time decision...

"Of course." Izuku easily answered.

He didn't want just any alpha. No. He wanted an alpha that would do anything for him and way more. He didn't want someone that simply loved him but someone that was obsessed with him. He wanted something passionate, something that couldn't be described by any words. He wanted a bond that surpassed everything else, that was more powerful than anything else...

He wanted Katsuki and no-one else.

"The fuck are you talking about alone with Deku?" Katsuki growled as he appeared at Izuku's side, the alpha wrapping a possessive arm around the omega's slim waist. He didn't like one bit how close Kaminari and Kirishima were to Izuku when he wasn't here to make sure they didn't tempt anything.

"We were talking about you." Izuku sweetly answered as he leaned into Katsuki's warm embrace. A low purr instinctively escaped him at the reassuring scent of his alpha, the adorable sound managing to calm Katsuki down in no time.

"Yeah? You were?" The blond alpha sexily smirked, feeling satisfied that he was the subject of their conversation. Izuku hummed in response and Katsuki couldn't help but stare at the omega's pink, plump lips; resisting the urge to kiss them in front of everyone.

"I made you hot-chocolate." He instead lowly murmured as he looked back into Izuku's beautiful emerald eyes and, inside his captivating crimson gaze, Izuku could see everything.

The lust, the possessiveness, and the unlimited love...

"Thank you, Kacchan." Izuku whispered in response. He knew no-one could possibly be a better alpha for him.

It could only be Katsuki.

Well, don't hesitate to tell me your thoughts or vote ;)