ACZD-134 Anal Extreme Expansion Reo Document Anal Fist Insertion Training Record 4-Day Expansion Development Achieved Anal Fist Record

How far can the anus open in 4 days... A record of anal fist achievement through expansion development. The subject, Suzushi, is a true anal masochist who possesses an anal pleasure structure not only physically but also mentally. She yearned for stronger masochism and had longed for anal fist. She was the perfect subject for this challenge. This is a brutal expansion documentary using an anal maniac woman as the test subject.