Wrestling my stepsister

My stepsister Amy and I were very close. Our parents got married when I was 14 and she was 15, and we became instant friends. We loved all the same things – video games, basketball, making fun of dumb TV shows. Our parents had expected some awkwardness with two teenagers suddenly living in the same house, but they were pleasantly surprised.

Since both our parents worked, Amy and I had the house to ourselves in the summers. The summer after my sophomore year in high school (I was 18 and she was 19), she worked a part-time job in the evening and I worked online, so during the day we often hung out around the house together. Since we felt so comfortable around each other, we did some pretty crazy stuff, like skinny-dipping in broad daylight in the backyard pool (the neighbors were all old people who were unlikely to peek over the fence).

One day we got in some kind of silly argument while watching TV in the living room – neither of us was mad, and neither took it seriously, but we started play-wrestling. Amy is about five inches shorter than I am. She’s pretty robustly built for an Asian girl (her mom is Taiwanese), with strong legs and fairly broad shoulders, but I am taller and stronger and can generally handle her. I first almost pinned her, then tickled her, making her scream but allowing her to wriggle free. She charged me, but I lifted her into the air, still shrieking and giggling. She kicked out wildly with her feet…and one of her feet caught me in the balls. I dropped her to the ground and collapsed from the sudden shock, but when I tried to get up, the real pain began, and soon I was clutching my groin and rolling around moaning “Amy, you castrated me!”