it was required. because of the plot and characters. it was dramatic and it ouldn't be as that if that weren't happened it burned up flames of past and feelings he has thrown behind the mask of bloody cold hardboiled man. the kid also didn't consider it rape since he felt his pain and confusing state of mind while he was doing it. you need to differate rape from this. I don't kno why 'brats' always consider rape when they see seme to attack uke not prepaired. T)T
Am I the "brat" ? You have the right not to agree with me but could you please refrain yourself by judging people. It's really and unpleasant thing to be treated like that.
I'm really are NOT in these rape plots. Those stories were good enough not to have that kind of scenes. Maybe in the first, it could vaguely be okay but it's totally useless in the second story.