"anh~! Ah~! G-ghk~!! Darling..! G-gentle...!" He cried out as he grips on the bedsheet.

You return home and saw your boyfriend playing games in his room. His hair is messy and not to mention his room. You always scolds him about this but he never listen. Anger filling up your body and you yank his hair with force, making him moans loudly since he have a sensitive scalp. You then drag him to your room and decided to punish him by brushing his hair aggressively since he's a masochist.