I'm a guy who shares an apartment with this gorgeous girl. We don't have sex but I have the luxury of seeing her running around half-nude a lot of the time. I think she's a tease. She has a habit of having long baths in our bath tub and she never locks the door, just leaves it slightly ajar, but not enough for me to be able to see her as I walk past outside the bathroom, which is situated in a hallway between the kitchen and our separate bedrooms. Anyway, the other day she prepared for one of her baths, and took her time, walking around in shorts and a t-shirt, with no bra underneath, so I got rather excited from watching her, even though I tried not to. When she finally entered the bathroom, she half-closed the door as usual and I heard her shuffle around inside, undressing and then the splashy sounds as she got inside the bath. Just the thought of her being nude made me aroused! And then, after a minute or two, I heard some subtle noise..at first I couldn't quite figure out what it was, but when I stood outside the door I heard it was music. I couldn't make out what song it was, but I recognized it as the heavy metal which she loves to listen to. I knew then that she was listening to her mp3-player with the earplugs, because I've heard that sound before. So I stood there for a while and then I pushed the door open a bit and could see her head, which was closest to the door, she was facing away from the door. And sure, she had her earplugs in. But not only that - she also had a small wet towel on her face! So I said "hey janet!" but she didn't react. Then I realised this was my opportunity. I was already excited and my cock was hard, so I pushed the door open until I could see all of her, and even though she was in the bath and most of her body was under water, I could a nice clear view of her tits which were both well above the water. The rest was invisible because of the foam she had put in. But I stood there for a while masturbating while watching her beautiful pale tits with her pink nipples. This was so fucking exciting! I then decided to undress, and took off my pants, my underwear and my t-shirt and stood there completely nude stroking my cock next to her. Then I felt i was about to come so I moved even closer and let my cum shoot over her tits and chest. First I panicked and thought she would notice and she didn't react, as if she was half-asleep. My cum was clearly visible on her tits, nipples and even up her chest close to her chin. THen grabbed my clothes and sneaked outside, and closed the door behind me. After about 15 minutes she emerged but she didn't say anything or react as if she had noticed.