By the fourth month they uncovered who caused the attack on Kirishima. It was one night when everyone had gone to bed, and he was called from his bedroom by All Might and Aizawa who had leads on the attacker. Izuku was notified, alongside Todoroki and Kaminari. Izuku knew that he'd taken most of the brunt, and grief compared to others in the class. Mina had fallen into depression and she'd been absent for an entire month.

When Katsuki visted Mina in her dorm her entire demeanour was deflated. Her eyes were puffy, her cheeks glossed over with tears and her hair tangled, which was normally silk pressed. He offered her to come outside to the common room for his signature cinnamon spiced cocoa with whipped cream and toasted marshmallows. She accepted it and came out a couple minutes later, her face plastered in makeup and her hair done well as if she just hadn't been crying. She pulled on her cashmere sweater and leg warmers before heading downstairs. 

The rest of the group had huddled up infront of the common room TV, eating cheese and caramel flavoured popcorn. Mina sat down with the girls as Katsuki stirred the pot of warm cocoa on the stove. Izuku joined him, hugging him from behind. He nuzzled into Katsuki, presumably for the warmth he radiated and Katsuki dragged him to his right side and kissed his head. He filled three mugs of cocoa, one for him, Izuku and Mina, topping them off with whipped cream and toasted marshmallows.

Everyone was deciding to watch Home Alone, and Katsuki sat with Izuku on the sofa. Izuku's hands were frozen, along with his feet and so he dragged him into his lap, and Izuku let out a groan of happiness. He pulled one of the blankets over the two of them. Izuku nuzzled into him, seeking warmth and Katsuki slowly slid his hands under Izuku's sweater, and then his shirt, making him jolt. He let out a low laugh. Izuku blushed, and Katsuki swore he saw blush on Izuku's neck.

"Full body blusher, hm Izu?" Katsuki whispered into his ear. The red on his neck intensified and Katsuki chuckled. Izuku relaxed further and Katsuki swore under his breath. The shitty nerd had given him a painfully hard erection. If he could feel it, he didn't say much. Instead, Izuku's hips started to move. 

"Tch. Dry-humping me nerd? Infront of the class too?" Katsuki groaned lowly into Izuku's ear as Izuku continued  his pace. To give his payback, Katsuki's hand traveled down to Izuku's sweatpants and slipped inside. Izuku jolted as Katsuki's hand wrapped around his dick.

"Payback nerd" Katsuki said, whispering into his ear as Izuku painfully grinded against him. He slipped his hands into Izuku's boxers and started moving slowly as Izuku let out a low moan.

"Focus on the movie nerd" Katsuki said picking up his pace. If the class had noticed, they'd probably played the best game of Charades, Katsuki had ever seen in his life. 

"Fuck Kacchan..." Izuku groaned. Not a single word after because Katsuki felt Izuku's cum drip on to his hand, at the same time he bit into the corner of Izuku's neck. He reached for the tissues on the table infront of himself, and cleaned Izuku up, and then his hands. Gods luck for the cleaner who would clean the living room, including the sofa. 

Half an hour later, the ending credits rolled on the screen, and Izuku stood up taking his mug to the sink. The last warning for curfew rolled on through the intercom and he trudged back to his bedroom. Izuku joined him just as the lights slowly shut off, and it was darkness. Katsuki drew the curtains shut, hoping tonight he wouldn't have nightmares of Kirishima tormenting him for not saving Kirishima. Izuku curled into his arm and fell asleep instantly.

3:09 AM.

Katsuki wokeup from one of the same nightmares again, and walked out in the bitter cold on his balcony, sliding the door behind him, making sure not to wake Izuku from his slumber. Fuck. This was how Izuku felt like when he nearly died and couldn't do anything about it. He looked across and saw Mina, she was sitting on the frozen balcony, cradled in her nest of pillows and blankets on her phone. He squinted harder, and saw her crying. 

She must've had a similar nightmare to him. Only he knew. He decided to let her be and re-entered the room, sliding the door shut and opening his bedside drawer. He grabbed the cylinder of sleeping pills, chucked one like a robot and drank water, before placing it inside the drawer. No-one knew about this, not even Izuku who was knocked out. He climbed back into bed and place Izuku's head on his chest and fell asleep.

 For once in his week, he didn't have nightmares.