My brothers friend who is 16 came over for a sleepover. Im 19 and my parents went out and pretty much wanted me to watch them, babysit them while they were out. I was on my phone talking to a friend for a while and went up to my room and I saw my brothers friend in my bedroom smelling my panties from my hamper. I was totally freaked and I didn't know what to do but just stand there and look. I guess he was freaked too, he looked at me like he was going to have a heart attack. He didn't say anything, dropped my panties on the floor and ran out of my room quick and didn't say anything. I picked them up and put them back in my laundry basket, and looked through it quickly. Later I looked through his backpack and I found one of my bras and 2 pairs of my worn panties. Obviously I took them back. I am so pissed off! I really don't know why anyone would do that, especially a friend of my brothers. I don't really know why he would do anything like that? Isn't smelling my dirty undies weird? Isn't kind of like smelling me? And what would he be doing with my bra? Please help, I don't know what I should do.