ok, i have a younger sister and i've recently discovered she's masturbating (now she's 12,5 and im 15). anyway she doesnt know i know it. i discovered it one day while we were watching tv together. she had covered her stomach with a pillow (it looked so usual). but then i noticed what she was masturbating (its not difficult because im masturbating too and i know when someone does it). since then. every time we're watching tv i look at her. guess what? she's masturbating all the time when we watch tv. she thinks i don't know it. she really gets on my nerves! i cant stand it. i think everyone must masturbate but alone, and if someone does it in front of other people that shows he/she doesnt respect them. i hate the way she acts when she does it, like nothing its happening!!!! i just hate it because i show some respect and im masturbating in my room or in bathroom but she's not! oh, please, tell me what to do. i feel so UNCOMFORTABLE!!! you dont know what is to have your younger sister siting near you and masturbating like nothing is happening... it gets on my nerves. dont tell me to talk to her, cause i cant talk about it... HELP!