Hey guys. Trying to find a hentai I read about four years ago, maybe on Fakku.
It was about a boy who is being bullied by a group of girls, and somehow his dick comes off. It can attach to things like a desk, and even people, and the boy and whatever the dick is attached to feel it.
There was one chapter where one of the girls puts the dick on herself and has sex with guys while the boy is forced to crossdress.
The ending is where the boy is fucking one of the girls who loves him, and his mom reveals that she's actually a witch, and the dick detachment spell was in order to make her son good at sex so he could become like his father. The son is covered in smoke, and then he becomes a large black man and says "Thanks mom!".
Any idea?
[Shiwasu no Okina] Sei So Tsui Dan Sha