My boyfriend's son is a sex monster; my friend, a fair-skinned, big-breasted mom, keeps ejaculating and can't stop getting erections. (Morisawa Kana, DASS-160)

I ejaculate once in the morning, after meals, and whenever I have a spare moment before bed, but even so, my son's penis still won't subside. This problem, after discussing it with Hime Saki, ignited her instinct: to use her body to eliminate my son's sexual desire…