My stepmother Yuu is usually a serious and neat girl. One day, she came home drunk, but she mistook me for my father and seduced me with her beautiful ass! She showed me her smooth, spotless ass... I'm a man too. There's no way I could resist...! When my stepmother gets drunk, she turns horny, so I pounded her hard and came inside her! That's when the forbidden relationship between me and Yuu started...