On the day of my parents' wedding anniversary trip, I have sex with my slender, shaved little sister Mikako all day long to make a baby. We usually have sex secretly, hiding from our parents, but now Mikako can do whatever she wants, like cooking for her and having sex in a school swimsuit, because that's what she wanted her brother to do. After all, Mikako loves her brother! *There are no performers under the age of 18 in this work.