As in best buddies, for you, it didn't mean "getting along really well". It meant "being together 24/7 while doing dumb shyt." Katsuki got used to you being up his ass every second. The only moments he'd get privacy were only if he asked you to leave him alone for a few hours or when he'd go to the bathroom. In the rest of the time? Glued to each other. It's not like he hated it. He quite liked it, even if it was someone else he'd tell them to fvck off. But with you? Hell, he was the one asking you to go with him at his parents' house when you guys were allowed to leave the dorms. Mina was your girl bestie, and you guys talked about EVERYTHING, even when you were with Katsuki you'd text or even bring him in the girl talk too so he won't feel "left out". When he wasn't there or it was over text, you'd also secretly talk about your little "friendship" with him and how sometimes he gave you THE signals. And today was no different.

You were at his parents' place AGAIN, in his room. He was playing something on his PC with Kiri and Denki, with you sat on his chair's armrest and your thighs on his lap. Running his mouse over the viral pink Hello Kitty pants you wore, he was using your thigh as a mouse pad so you wouldn't think he was ignoring you. Getting the perfect example of those signals he gave you, you secretly took a picture on snap and sent it straight to Mina, then put your phone down to run your fingers through his hair, waiting for her response. As expected, not even a minute later, your phone buzzed. It was Mina. Soooo, after some side eyes received from Katsuki cause of you smiling at your phone, you finally put it down. "Who was it, eh?" He asked, not giving a shyt that he was still on ft. with Kiri and Denki.