ハーピーツインズ

Close sisters that live in Harpy Village. Not limited to Harpies, twins and sisters are actually quite common in the monster world. Since Harpies love mating, there are many sisters and twins that live in the village. Living in close quarters in the village, Harpies have a strong sense of community. The bond between sisters is especially strong. It isn't unheard of for them to share a husband. In this case, the elder sister is able to assist the less experienced younger sister. However, in these cases the man is exhausted twice as fast. Luckily, there is a method handed down in the Harpy Village that is able to rejuvenate exhausted men through a combination of diet and other treatments. [From In-game Monsterpedia]