Looking for a hentai comic, pic is just the closest art style I could find to what i'm looking for.
Starts off with an elf mother and daughter in their house when a bunch of dark elf futanari come in and start raping them. When they get to the daughter there's a scene where the mother is forced to make her daughter cum and I think toward the end the daughter is turned into a futanari as well and fucks her mom.