My stepmother is always craving a big dick from my son-in-law.

Momoko, who lives with her daughter and her husband and wife, has been having sex for the past few years, and there's no way she can masturbate. However, one day, he is captivated by the huge cock of his stepson Kazuya. Furthermore, Kazuya, who has no sex with his daughter, has no way of giving him sex, makes excuses to himself, saying, "It's pitiful that he's frustrated," as he attacks him as he lay down. Momoko, who had felt her sexual desire to be at the extreme, could not be finished just once, so she provoked Kazuya many times and lewdly torture him...