S1's proud perverted genius miru and the rising star M male director finally collaborate! One day, my sister's boyfriend comes over. He's full of himself but he's really pathetic! To test if he's good enough for my sister, I play with his nipples to seduce him, and he reacts intensely! When I whisper dirty talk in his ear, his dick gets hard! He even cums while his girlfriend is right there, what a loser! But maybe I want to bully him a little... laugh.
