I Mastrabated While Wearing My BFF’s pants

So I was at a sleepover with my BFf, but I forgot to bring pajamas, so she let me borrow and t-shirt and sweat pants. I have insomnia, so I stayed up for a while. And.....you know....human nature. I felt h****, so I masturated while she was in a deep sleep. But as I was doing it, my idiot ass remembered that these weren’t my clothes, and.....let’s just say I got them a lil messy. I guess she never found out tho, cuz of course she washed them and then that was it. But I felt like the biggest idiot ever.....never again, lol