FERA-204 My sexual partner is my mother. I broke up with my girlfriend because sex with my mother was too stimulating; I ejaculated inside her repeatedly. Rin Oka - Rin Okae

Rin's son and his girlfriend seem to have a strained relationship. Rin discovers the root of the problem lies in his poor sexual performance, so his girlfriend offers to be his coach, providing intensive sex training. For her son's happiness, Rin uses her mature body and skillful techniques to offer passionate guidance. However, Rin's intensive training ultimately drives her son's libido to a frenzy…