From what I can tell, Uiharu is feeding Saten a (what I would assume is a psychoactive) mushroom with her mouth.

I guess drugs are a pretty big turn on in places where they are heavily outlawed? Or maybe just hard to acquire, I don't know lol.

She is turned on by the idea of almost kissing Uihara. Saten has always had a yuri dream or fetish to get into Uiharus panties. This is like sexual overload for her.

Dutchems said:
From what I can tell, Uiharu is feeding Saten a (what I would assume is a psychoactive) mushroom with her mouth.

I guess drugs are a pretty big turn on in places where they are heavily outlawed? Or maybe just hard to acquire, I don't know lol.

That isn't a mushroom. It's a Japanese snack shaped like a mushroom. Made out of chocolate and the same thing pocky is made of. Completely forgotten the name of it though.

I guess I just can't get that picture of Uiharu lighting a joint for Misaka out of my head.

Or maybe I just want more drug use in my anime girls. On topic, I feel like Saten coulda just had her whenever she wanted.