Watching someone getting naked.
Every time i get a knock at my bedroom door there is this 24 year old girl who would let me know that she was going into my bathroom to take a shower. As soon as she walks in and shuts the bathroom door i would pull down my pants and would look through this tiny crack on the side and would watch her undress. With her never knowing that i can see her i have a great view of her tits when she is looking at herself in the mirror pulling her hair down. I also have a great view of her ass. I love the feeling that i get every time i masturbate watching her getting naked. I get so horny watching her that every time she stretches her naked body i cum all over myself. Is this normal? i don't want to have sex with her i just love to watch her get in the nude and how it makes me horny knowing that she is unaware that i can see her female parts.