My wife's older sister, Yuko, ran away from home after a fight with her husband. It seems like she has a secret... At first, she kept quiet, but as the alcohol started to flow, she blurted out her true feelings. "I'm sexless." In fact, I was also sexless, and it didn't take long for us, both of us, to have a relationship. However, Yuko's desires gradually escalated. When my wife wasn't looking, we did it in the bathroom, the closet, and next to my sleeping wife... I continued to writhe in agony, and my reason and my dick were on the verge of exploding.