It's said that the current Z generation has a lower rate of masturbation, with one in six people having never even experienced it. 'Masturbation is just a waste of time,' 'There are plenty of other interesting things like SNS,' 'Does masturbating too much make you stupid?', 'Not masturbating is cooler,' etc. Not only masturbation but also no interest in sex for Z-generation males. A sexy older sister will correct their wrong knowledge while guiding and supporting them on the eroticism and pleasure of the female body.
