My stepfather is now my slave

I slowly seduced my stepdaddy until he couldn't take it anymore.

I was 18 and a senior in high school when my mom married Sidney. He was a short, thin guy who was a manager at a local company. He made good money, but for the life of me, I could not figure out what my mom saw in him. I was sure that he had been a nerd in high school, and now he was in his forties and still gave off a nerd vibe, but she chose him and my little sister and I had to live with her decision.
Not long after the wedding (Sidney moved into our house because it was larger than his place), caught him trying to see down my blouse at the dinner table. Another time I noticed him becoming very talkative and friendly when I was in my bikini at the pool. I never saw him pay much attention to my flat-chested younger sister, but she was only twelve, and I guess she didn't have much to offer. To test Sidney I started doing a lot of things to see how he would react. Once I left the bathroom wrapped in a towel, and as I headed toward my room and was passing him, I "accidently" dropped my towel. I was wearing a bra and bikini panties, but I thought that Sidney's eyes would pop out of his head. I left the bathroom door open about an inch while taking a shower, and when I peeked out I saw that he was standing in the hall and peeking through the crack. Once when we were all playing a card game around the table, I was wearing a cutoff top with no bra and my nipples were poking out. I noticed that Sidney couldn't stop looking at them whenever my mom wasn't watching. I "accidentally" dropped a card and got under the table to get it, and I could see that my stepdad had a very obvious erection. I knew that if I played my cards right, I could soon have my stepdad eating out of my hand.
I began to flirt with him when Mom was not around. When I would talk to him, I would touch him with my hand, and occasionally bumped into him around the house. I suspected that he was spying on me, and I set a trap to catch him. I had started leaving my bedroom curtains open just enough for someone to stand outside and watch me in my bedroom. A little before bedtime, I used the water hose and soaked the ground around my bedroom window. That night as I was headed for bed, Sidney announced that he was going for his usual walk around the neighborhood. In my room, I took my time taking my makeup off and getting ready for bed. I took off everything except my panties (I usually sleep without a top in the summer) and crawled into bed with my laptop. I had no idea if Sidney was watching me, but I fantasized that he was, and it made me hot. I found some porn on my laptop, and I began to rub my slit through my panties. As I began to get wet, I started pinching my nipples (part of my regular masturbation routine), and then I slipped my hand into my panties and began to really work on my clitoris. It was hard enough to cut glass. I orgasmed quickly and put away my laptop and turned out the lights. The next morning, I got up early and went outside to check. Sure enough, there were footprints all over the ground outside my bedroom window. It excited me tremendously to know that Sidney had stood outside my window watching me masturbating and probably stroking his hard cock. This is when I began planning how I would lure him in and turn him into my slave. (Stay tuned for part II coming soon.)