Yumika and Hina, who live in the same apartment, are mommy friends who belong to a certain club. The activities of that club are -- sex! They invite the handsome guy they call to their room, the plumber, and the neighbor's student, and they devour him 360 degrees from the front, back, top, bottom, and so on! They make loud noises as they bite, lick, suck, and suck every hole and protrusion in their bodies! Witness the orgy of sexually-driven monster parents who fight over dicks with smiles on their faces!