I'm looking for a hentai manga where two sisters go to a guy's apartment whenever they feel lonely when their parents leave.
One girl is blonde with, I think, pigtails and the other one has black hair. The manga ends in a threesome.
I didn't have any luck on exhentai.
bump.
Another thing I remember is they've been visiting him since they were young. Nothing happens, it's just a flashback panel of them visiting him.
It is also translated in english