Bakugou is secretly terrified of horror movies, but he watches them because Kirishima loves them (if he notices Bakugou jumping at the scariest parts, he doesn't mention it)
Example
Bakugou: What do you wanna watch tonight?
Kirishima: A horror movie!!
Bakugou: B-but we just watched one last night
Kirishima: please Bakugou!!
Bakugou: Fine.
Kirishima: *eats popcorn while staring at the screen*
Bakugou: *covering his eyes under the blanket*
Kirishima: Yes a jumpscare soon!
Kirishima: *laughs at jumpscare*
Bakugou: *flinches*
Kirishima: *looks at Bakugou and smiles*