GDHH-165 Super High-Speed Piston Faints My Sister-in-Law, a Local Yariman Girl

The sister-in-law, known locally as a yariman girl from a yariman school, is always careless, showing off her cleavage and panties. She even pushes her breasts against him. The virgin narrator finds the stimulation too strong, and despite thinking it's wrong, he gives in to her tempting nature and loses his virginity. She gets angry but won't stop, and the intense piston action on top sends him flying and fainting.