Caught by step sister late at night

One night I was feeling restless and horny. Now my parents weren't home and it was just me and my step s****r. I was 18 at the time, my step s****r was 20. My step s****r had the most gorgeous feet I have ever seen. I have a huge foot fetish and nothing turned me on more then when she would have her bare soles exposed to me while being around the house. It was pretty late in the evening and I noticed my step s****r was laying on the recliner lazy boy with her socks off watching TV. The best part about this was that she was fast asl**p. Her feet were literally perfect! She had size 6 feet with a beautiful arch. They were always smooth and she had wrinkled soles with a nice pedicure. On this occasion I don't know what came over me but I decided I would try to sneak up beside her and get a good look at her feet and soles. The lights were off and the only brightness illuminating the living room was from the TV. More than enough light to see her beautiful feet. I always loved looking at her feet and thinking about them while I jacked off, but tonight I had to do something about my urge for my step s****rs feet. I slowly crept up beside the couch tip toeing so she wouldn't hear me. Luckily she had a busy day of swimming so she was out cold. I went down on my knees low enough that even if she were to somehow wake up she wouldn't notice me and I knelt down right to the side of the chair. In this moment I could see her feet very clearly and they were about an arms length from my face. She was wearing a robe because it was so late and what I saw next completely blew my mind. Her breasts were exposed a little bit out of the robe! This was just an added bonus. She had very firm big breasts with medium sized pink nipples. I couldn't believe what I was seeing. The combination of seeing my s****rs exposed breasts and bare feet put me into a trance. I slowly took my 7 and a half inch thick cock out and started to stroke it rapidly. I went a little closer to smell her feet and all of a sudden she woke up! There I am now in front of my s****r with my cock out looking at her feet and breasts. She quickly screamed. "What the fuck are you doing you little freak!" I couldn't respond, I was like a deer caught in the headlights. I quickly put my throbbing dick in my pants and ran to my room. I couldn't believe what I was thinking... All I could think at the time was what if my step s****r tells my parents. They are going to think I am so fucked up! What happened next was something that I couldn't have even dreamed of in my wildest fantasies. To be continued...