Monster Musume Vol. 8 (manga)

Kimihito's eyes are about to pop. The mothers of not one, not two, but three of the monster girls who live with him are coming for a visit. It doesn't help that this trio of mothers is every bit as sexy as their daughters--and just as dangerous to Kimihito's mental and physical well-being. Stuck in the middle between the mothers and their daughters, Kimihito learns more than he ever wanted to know about the mating habits of lamia, harpies, and centaurs, while repeatedly facing the possibility of an ecstatically painful death. Fur, feathers and scales are about to fly, as Kimihito's hide hangs in the balance!