I'm trying to find a doujinshi with this premise:
Brother lies to his friends that he has a girl friend when he doesn't. He asks his sister to pretend to be his girl friend to save face.
They go to the party and I think they get drunk. They get to share a guest room and end up fucking.
That's it. It was pretty good but I don't know what it was called or how to find it.
bump for interest
I would like to know more about this as well.
bumping again, still interested
Bump that shit
Following this interested as well