I masturbated using my gitlfriend’s sister’s underwear. I didn’t do it out of attraction for her sister. I think it was more the taboo of doing it in secret when nobody was in. And girl’s pants attract me. I didn’t make a mess of then or anything, I used a tissue. And I put her pants with dirty underwear so they’ll get washed. Flushed the tissue down the toilet. Me and my girlfriend have been having problems, she kissed another guy while drunk recently. And the other day she was breaking up with me before we both realised it’s not what either of us wanted. It was a way of dealing with her guilt. How do I deal with mine? Human beings have s***** fetishes, right? And it’s not like I was doing it in revenge or because of her sister or anything, it was purely because I was h****, alone and have into a sudden taboo impulse. I wish I hadn’t. I feel awful. That has to count for something, right?