well. Im trying to find some decent mother and son incest manga.
Aunt is also alright, even a little bit of sister (sister and brother is a lot more common though).
Id prefer something along the lines of where the son likes his mother (or aunt) and they eventually ease their way into it a sexual relationship.
So he keeps it a secret for a bit and then eventually a few things happen and they hit it off.
Or the same but the mother and son's roles are reversed, so the mother like her son and so on.
Although id prefer the first with the son liking the mother.
I enjoyed Scarlet Desire, Tatoeba Haha Ga (ongoing), Taboo Charming Mother (anime)...
Umm, cant think of any right now. There were a few others in some manga books. Step mother is also fine.
Please name a few series I may enjoy.