Fat stepmother got cancer and her stepson fucked her in the first person

When a plump stepmom asks her stepson to bring a towel to the bathroom, she does not hide behind the curtain and allows the guy to see her masturbation. Later, she starts a conversation with the lad about sexual dissatisfaction and the desire to have a good sex with someone. Well, this lucky man becomes a stepson and his main task in all this is not to fall victim to the indefatigable sexual lust of a dissolute fat woman.