Part 4 in the Magic Transformation Girl series. This time, the penis role is played not by a mystery villain, but by a dirty older man. Includes some brainwashing/stupefying depictions.
A single mother's daughter is taught exhibitionist masturbation by a college friend of her mother's. To get her daughter back, the MILF must do what she's told and become an exhibitionist.
Yui-chan from Hachigatsu no C*nderella Nine broadcasts an erotic video online, but her account & identity is discovered by someone who then blackmails her.