Red demons with big futa cocks. Monstergirls
Futa demon Monstergirls fucking girls and whatever they can get their hands on.
Heres a good demon comic:
Hella Trap Futanari Comic by Incase
And a not so good one, well as far as the art goes:
Devotion Futanari Comic by xMLx
Theres some non futas mixed in with these lamia monstergirls. Good futanari is hard to find sometimes, the other post has more.
Oh and i found one great snake girl comic by Mikoyan:
I will Love You Equal to the Number of Scales that I Have! Futanari Hentai Manga by Mikoyan