@breizh she comes from very strict and traditional family, if you dont remember, I remind you - she even dont buy her own underwear until few chapters ago. So yeah, for her - it's like open rebellion (bcs ropes are hidden), so it can't be considered as bad behavior in her family.
Anyway, thanks for another chapter of this gold. I like the progression, slowly, but it begin to evolve.
First off, this seems like a pretty obvious allegory for losing your virginity (afraid of pain, stiff phallic object entering your body, blood).
Second, I do appreciate how he didn’t try to act sadistic towards her with it. Shows that he actually understands the difference between a serious situation and one that might have been set up in order to heighten the arousal.
Somehow a couple panels for him to lecture her about taking care for the piercing of the ear would have been good to see. This is like without thinking ahead just chasing sensations. Well whatever.