Mina and Riho are a pair of married women who are close friends.Mina's husband is an athletic dick idiot, and Riho's husband is a theoretical intellectual dick.They are both satisfied with their sexual lives, but at Riho's suggestion they decide to swap husbands with each other...Then, on the day we arrived, the four of us were at the peak of our excitement for sex, swapping.A serious competition to see which dick is better!“I’m sure my husband’s dick is good…!!”
