Serious younger sister Honami and free-spirited older sister Nanako were good sisters. One day, Honami accidentally discovers an anal vibrator at Nanako’s house. Nanako suddenly starts anal masturbation in front of Honami when questioned. Honami was dumbfounded when she saw it, but she felt lusty. The next day, Nanako invites four men. Nanako indulges in pleasure while looking at the bewildered Honami… In addition, the men’s spearheads are directed at Honami’s anal… Tall sister’s W2 hole 6P opens the curtain! !