He did but it wasnt shown here.
Check yoru to asa no Uta, it has the same rape story but shown differently.
It happens actually, since it's just a physiological response to external stimulation. Push the right buttons and you get a response type of thing. Think less of it as being 'turned on' and more of a reaction.
I read that doujinshi before writing this comment. But if you stop to think, Asaichi got hard because he was forced to do so by Chiori's brother. He even had to think about Yoru in order to obey. Soooo what I meant was that being raped didn't arouse him and that's what made me happy.
Indeed but arousal is also a psychological matter. Asaichi hated that situation he was going through. He was scared, hurt and disgusted. I highly doubt he would be able to get a boner for that dude who was raping him (forgot his name) just out of physiological response.
Isn't a solely physical response? A boner is blood rushing to ya dick. Surely the adrenaline from the situation + the situation itself would have prompted it...
Rape does induce physical response. Women getting raped gets orgasms, and men getting raped get boners. That's why rape also psychologically ruins the victims with questions like "If I didn't like it, I wouldn't have an orgasm, right? So why did I? Maybe deep inside I liked it." And of course, many people are cruel and throw those kind of words to the victim as well, and it also is an "evidence" against the victim. (I attended an open forum/discussion of a rape victim who finally had the courage to sue her half-brother (rapist))
I really like the fact that Asaichi doesnt get hard from being raped. I mean, it happens so often expecially in those manga in which there is group rape. Like WTF? How can a person be normally turned on by blatant violence?