Naturally filthy porn star Mina Kitano finally agrees to her first anal scene. A month before filming, she tells the director that she is nervous but ready to take the step, and is instructed to document her own anal training. At home, in the bath, and even outdoors, she films herself examining and gradually stretching her ass with fingers and toys, capturing the daily changes in both her body and emotions. When filming day arrives, a male performer inspects the ass she has trained for a month before driving an extra-thick cock deep inside. Tension turns into intense arousal as each thrust spreads her anus and rectum and pushes her through repeated orgasms. Her H-cup tits and thick ass bounce with every hard anal pounding in a raw record of Mina embracing an entirely new kind of pleasure.