Eina Satsuki, who takes the name of genius as she pleases, is indeed a genius in cowgirl position. Her flashy hair change makes her seem like some kind of perverted woman with overflowing strength. She's an erotic warrior. As soon as she sees a man, she uses her long tongue for a breath-taking kiss, making him instantly hard, then straddles his dick and shakes her hips. Her cowgirl hip movements are unparalleled, truly genius. Ordinary sex isn't sex at all. This is the real SEX that genius Eina Satsuki teaches you. Warning: May cause overstimulation.
