My cousin and I are very close. When we were kids, we'd always go to each other's houses for the summer, and continued to hang out even until college when I moved into the city. Even then, she'd sometimes come over and stay over at my apartment, and we'd sleep on the same bed.
One time she was visiting, I happened to walk in on her fully nude as she got out of the shower and she was nonchalant about it, even talking to me as she was getting dressed. I couldn't believe it, she was just so hot! I couldn't help myself and directly wanked off in the shower.
Since then, I couldn't get her out of my head, and would sometimes catch glances and peeks while she's in the shower every time she comes to town.
After college, I went back home, and some things happened that she ended up staying with us. Now that we see each other every day, my urges seem to be building up, and I can't help but think about her every time I masturbate. But now, I try to stay away from her, even sometimes being cold to her just to keep myself from being too close and touchy-feely.
I so want to try something, and feel that she'd give in as she's living with us with nowhere to go, but I don't want to ruin whats left of our relationship, not to mention what our parents might feel. All I can do now is masturbate every night, even sometimes at work every time she visits me. It doesn't help that she very hot and tends to dress up really sexy, sometimes wearing only panties and a bra-less tank top when we eat meals and watch movies under the same blanket.
Please help!