Okay so, I cant for the life of me find that doujin on nhentai anymore.
I can remember the following:
It starts with a streaming girl. Maybe vtuber?
She says that she will meet up with one of her fans.
So they meet up go to a hotel and do the usual.
After some time they go to the mans house. He is married and has a kid.
The girl and the man then do it in the entrance of the house, risking being found.
The last thing I remember is that it turns out that the girl is a vampire (?) and mind controls the wife and the kid. She then sucks some blood from the kid and flies away.
Hope anyone knows which one I am talking about! Ty