A pairing of an amateur girl and a masochistic man! When I had a normal girl "try being a slut," she became curious about the M-man and asked, "Are your nipples sensitive?" She developed his M-sensitivity and teased him, sat on his face and masturbated him until his testicles were empty, but that wasn't enough... GEBB-020

An ordinary girl is extremely interested in the penile response of a sensitive M-type man, thus activating her S-type obsessive mode! She asks, "Are your nipples sensitive? w," to initiate M-type erotic development, using the cowgirl position and masturbation to make him ejaculate until his scrotum is empty, but it's still not enough…