Usually, my stepmother Yuu-san is serious and pure. One day, she came home drunk, which was fine, but she mistook me for her husband and tried to seduce me with her beautiful, flawless ass! Seeing that smooth, spotless butt, I'm a man too. There's no way I could hold back...! When she's drunk, my stepmother transforms into a slut, so I fucked her hard and came inside her good and proper! From there, the forbidden relationship between me and Yuu-san began...
