my (14) sister (15) keeps hitting me in the balls. She has always been mean but lately she will go out of her way to hurt my balls whenever she gets the chance. I told my mom about it a few weeks ago but we don’t get along very well so she didn’t really do anything to help. my dad isn’t around anymore either.

Ive told her to stop many times but she laughs and takes it as a joke. I’ve tried hitting her in the privates and it looked like it hurt a bit, but it wasn’t worth the kick in the balls I got after and it didn’t stop her from doing it. I don’t know what to do?