[ENGLISH-SUBTITLE] FERA-180 Remi Kawanami, a mother who thought it would be okay to have sex just once, but ended up in a swamp because her son kept making her cum.

“The only person I can rely on is my mother!” Koji, who is not getting along well with his girlfriend because he is bad at sex, begs his mother, Reimi, to be a practice base for sex. Naturally, Reimi refuses. Such behavior cannot be tolerated. However, if Reimi is unable to resist the gentle caress and is forced to do so, coupled with her weak masochistic temperament, Reimi ends up cumming involuntarily. Reimi then quietly told Koji. “It’s okay if it’s just once.”