My Girlfriend’s Mother Turns Me On More – My Dick Hurts From Being So Hard

Synopsis

Sakai and Kokoro are a dating couple. One day, Sakai visits his girlfriend’s house and meets Aiyuu, her voluptuous mother with an emphasized chest, and becomes excited. When Sakai borrows the bathroom at his girlfriend’s house, he witnesses Aiyuu masturbating while calling out his name and pretending to be Kokoro. Unable to contain his excitement, Sakai masturbates his erect penis, but Aiyuu finishes first, leaving him unsatisfied. After this incident, Sakai cannot stop thinking about it and begins to pressure Aiyuu into a relationship…