When I met my (now) wife, my stepdaughter was 10 years old. She was a sweet kid and we connected immediately. My wife and I were both very sexually active and adventurous and, as always happens, it all slows down as the years pass. My stepdaughter had blossomed into a beautiful woman of about 5'9" in height and around 150lbs and, by the age of 19, was still living at home with us. Try as I may, I couldn't help but having sexual feelings about her as we were close both emotionally and physically. She still liked to cuddle with me on the couch if we were watching a movie and her mother wasn't home.
On a typical movie night, she would plunk down on the couch and put her feet in my lap. She'd tell me her feet were sore from working all day and asked me "pretty please" if I would rub them for her. It all started out very innocently that I would slip off her work flats and casually rub her feet as we watched the TV. Maybe the third or fourth time this happened, I started to notice her feet were slightly damp with sweat and the smell was very pleasing to me. I also started to notice that her fairly large size 10 feet were perfectly manicured and her red painted toe nails were beautiful on her long slender toes. As soon as this realization hit me, my cock started to grow. I slowly slid her feet away from my stiffening cock so she wouldn't notice the effect it was having on me.
I felt so dirty and ashamed of myself. I continued rubbing her feet and she stretched her legs out and moaned. This made my cock even harder and it popped out of the flap in my shorts (what was I thinking not wearing underwear?). I released one of her feet and tried to tuck my cock back in my shorts without her noticing. Once I got it tucked away, I looked at her and she was watching me. Busted. We were both a bit embarrassed by this but she graciously declined my apology and told me she understood how these things can happen on their own. What she did next blew my mind and changed our relationship. She slipped her feet off my lap, put her flats back on and said "if my feet are turning you on, I'll assume my other position". By this, she meant her head in my lap. This was normal for us after I finished rubbing her feet.
She spun around and put her head in my lap and carried on watching the movie. This made it even worse for me and I'm sure she knew that. I had a feeling she was doing all of this on purpose but I couldn't resist or stop it. She was shoeplaying with her flats as she watched TV and this made my cock pop out of my shorts again. This time, my hard on was raging and veiny and was now pushing into her beautiful brown hair. Before I could pull it back, she put her arm under her head and rested her hand right on my bare cock! I sat there, frozen, not knowing what to do. She did, though. She wrapped her hand around my cock and gently squeezed and released it as she continued watching TV. Nothing was said between us.
The movie finally finished and, somehow, I had managed to not cum all over her hand and hair. She gave my cock one final squeeze, got up and kissed me goodnight as my massive erection hung right out for her to see. She kicked off her flats in front of me and headed off to her bedroom. As soon as I heard her door close, I grabbed her flats and slipped one on my raging erection. I fucked her right shoe as I buried my face in her other shoe and licked the sweaty insole. I blew an enormous load in her sweaty shoe. After I recovered, I set her flats back down where she had kicked them off.
The next day, my stepdaughter came home from work and kicked off the flats I had dropped a massive load in right in front of me as I sat on the couch watching TV. She had been wearing them all day in bare feet! She headed for the shower. She takes long showers, so I knew I had lots of time. I thought she was in for the evening, so I grabbed them while she was in the shower. I sniffed and licked the left one and admitted how sticky the right flat was with her sweat and my cum. Both were extremely damp (even wet) from her bare feet sweating in them all day (she was doing 10 hour shifts).