Magic Mirror: Using a modified vibrator to stimulate a sensitive vagina, being cybernetically assaulted and having sex in front of her boyfriend (SDMM-166)

New Doll Challenge! Four amateur college student couples seeking money participate. If they remain motionless for five minutes while being stimulated by a [modified massage stick], they win a prize. A highly sensitive female college student trembles uncontrollably as her vagina is intensely stimulated…! NTR'd in front of her ex-boyfriend!