-You mean his brain-but-okay-
"Whatever-"
Time-skippy skip?
It was the day of the party, Katsuki AND Ren were in they're car, thinking of a way to get in the party but without being spotted. They were both wearing Tux, kinda looking proper-ish-
R: "Ummm-we could go in from a back window-just shatter it and hope no one hears it-"
"No...that-that's really fuckin' stupid Ren."
R: "OH-This place has a back door! And I know how to lock-pick doors so-we can go in from there!"
"You sure...?"
R: "Mhm!"
(Fun fact-I can lock pick doors-)