First of all I have a wonderful relationship with my wife and would never think about being unfaithful. I'm 40 and my stepdaughter is 22 and very attractive, I will call her Renee. She always has been a little flirtatious but never crossing any lines.
This happen a few nights ago while my wife was at work. Renee was on the sofa writing a paper for school and eating an ice-cream cone, I had been soaking a sore neck in the bathtub. I got out and put on my bathrobe and I went downstairs for a drink. I stood in the doorway talking to her as she was licking the ice cream cone; I noticed her staring at my waist. I looked down and my bathrobe was open just enough for member to poke out. I just acted like I didn't notice. She kept conversation going with small talk, and I looked down and notice her hand moving at her in her crotch partially covered by a blanket as she was licking the ice-cream cone. This went on for about 10 minutes. I took everything I had to keep from getting any harder than the semi flaccid state I already was in. I bid her good night and went upstairs leaving my bedroom door partly open. I had to relieve some pressure. Just the thought of her rubbing her pussy drove me wild. I crawled in bed and started to stroke my cock for about 15 minutes having to stop a few times to hold it back. Deep down I was hoping she would come up and catch me and stand to watch or better yet join me in a mutual session. I had my arm over my eyes thinking about what had just happened downstairs. I was so close to blowing it was insane. I heard her sneaking up the steps my heart started racing even more than it already was. I froze just holding my cock completely nude lying uncovered on the bed, she walked in quietly and went into my bathroom to fetch something and made her exit catching a glimpse. I then heard the bath start in the other bathroom, I blew the biggest load I've had in a long time, The first round shot up and hit me in the chin, with five or six more following.
I'm now sitting there thinking what I have done, what if she tells her mother what she saw. My guilt played way to curiosity; I gave it about thirty minutes and went down stairs for water. She was smiling from ear to ear with a very nice sultry smile. I did not let her know I saw her come in and she said nothing about it. I went back upstairs and stroked another huge load out thinking about it.
I came home from work the next afternoon and she still had the smile every time she looked at me. I hope all is ok.
I have been thinking about what happen all day at work and reading the solo-touch contributions. I love her like my own and would never think of having oral sex or intercourse with her. But I have fantasies about masturbating with her and also sucking her beautiful toes while I stroke my cock and she rubs one off.
My wife is working tonight and Renee wants to watch movies after she get home from school at 9:30. I can only hope she reads Solo-Touch and feels the same.
No matter what happens I will be stroking my cock with bedroom door half open tonight thinking of her touching herself.