True, if her bullying continued it might have intensified to the whole 'now strip' bit, its very bully..... It went from wholesome to almost rape pretty quick tho... Didn't see that coming
Since Kirigaya is gay then yes to the stripping. I get why it seems like it escalated to rape fairly quickly but I imagine that's probably why that one dude knows Tadokoro from middle school. That little bit of history connects them and the knowledge of Kirigaya alludes to the possibility that rapist dude participated in Kirigaya's bullying sessions. Combine that with the fact that he is a horny high schooler who now finds Tadokoro attractive, the rape attempt doesn't seem that far fetched to me.