I used to tease my step-father growing up by masturbating in my room when just he and I were home. It started one day when I was around 14 and really starting to masturbate a lot because I had super horny hormones. I was horny all the time and pretty much still am. If I went a day or more without cumming I couldn't concentrate or focus at all.

One day I was dying having been wet in school all day and not able to touch myself that I ran into my room and went at it without closing the door thinking I was home alone. I laid there in my panties with my legs spread rubbing my clit with one hand and the other under my bra tweaking my nipple until I came. I'm a loud cummer and I would have been careful but I always let loose when I was home alone. This time after I came I heard the hallway creak and nearly shit. I looked outside and saw my step-dad's car in the driveway. I felt that he had seen me or at least heard and knew what I was doing. I never let on that I knew and he never said anything.

I basically hid in my room for a week after that but eventually the idea of him seeing me do that was making me really horny all the time thinking of him watching. He was a nice guy and good to me and never pervy but the idea of being so exposed to him was exciting.

I started leaving my door open a crack whenever I masturbated after school and turning on music when I did it to drown on the sound of the floor. Most days I was home alone or he was already home to greet me so he didn't see but every so often I started seeing his car in the driveway after I finished and I figured he saw. I finally got bold enough to take off my panties so he could actually see me playing with myself. I purposely would spread my legs wide and cover my face with a pillow or stuffed animal while I did it so he would be comfortable enough to watch. I finally figured out if I put my make up mirror just so I could see out the edge of the door and see if he was there. It was like three weeks of masturbating every day after that before I finally saw him looking in. I nearly came when I saw him it turned me on so much. I spread my legs as wide as possible fingering myself and rubbing my clit, moaning and grinding my clit knowing he was watching making my juice just drip out of me. When I came I pretty much just gasped out a loud oh shit it was so amazing.

I got to where I would mix it up, sometimes I'd masturbate fully nude, sometimes I'd hump my pillow, sometimes rub myself under my panties and sometimes I'd fuck myself with my hair brush and I even fingered my ass a few times. This went on a couple of times a month or so until I went to college after which the fun was over. I have never told anyone this because it makes me look really weird and kinky and frankly dysfunctional but it was something I really liked doing for whatever reason.