kirikiribaku answered:
hello??? HELLO?? That is one of my favorite hcs ever, it’s like the perfect excuse for these touch-starved pinning idiots to give each other some physical affection.
Kirishima doesn’t even have to ask, one day Bakugou came into his room without knocking as usual and he found Kiri getting the mix ready, latex gloves on his hands and a towel around his shoulders. Bakugou doesn’t look surprised at all because damn, he is observant, and he pays very close attention to everything related to Kirishima in particular, so of course he’s noticed the black roots (wow can you imagine how difficult it must be to hide black roots against bright red dye?).
So they just stood there staring at each other until Bakugou walked inside and took the brush from Kirishima’s hands. “I’m not gonna let you be late for our study session, it’s faster if I do it.” he said.
It’s become a routine ever since.
Bakugou sits on the bed and Kirishima sits on the floor between his legs so that he has a better angle, and Kiri practically purs having Bakugou touching his hair, and maybe Bakugou takes longer than needed because he likes feeling the warmth of Kirishima’s cheek against his knee when he tilts his head to the side.