Although she escaped a rapist's attack, the aphrodisiac applied to her private parts took effect, causing her to masturbate uncontrollably! Kawakami Nanami DVAJ-401

A wicked doctor applies an aphrodisiac to Nanami's private parts and attempts to rape her. While the doctor is distracted, Nanami runs to a secluded corner of the hospital to hide. However, the aphrodisiac takes effect, causing her to become unable to resist and begin masturbating...