My adult sister's friend Erika asked me to be a practice model for her beauty-treatment training, and she turned out to be incredibly cute. Despite this being a completely legitimate Brazilian-wax session, my oversensitive body betrayed me: I got hard and ejaculated prematurely during the treatment. I apologized and thought I had escaped disaster, but at the next session she rubbed care lotion onto me and I exploded again. I was certain she hated me—until something completely unexpected happened.