I had always got on with you my step daughter ever since your mum and I got married 12 months ago. You have always been a tease and the older you get you seem to be more of a demanding teenager. Your mom was pre-menopausal and as a result our sex life had pretty much dried up, even oral sex was being viewed by her as dirty.
I found myself resorting to porn and masterbating more as a result to relieve myself of the sexual tension I seemed to carry around. I was throwing myself into my work more as a distraction. One particular morning, woke up and went to have a shower. I was half asleep so didn’t take much notice ( on reflection I should have, looking back at this now!), the shower was on and door was adjar, but thinking that it may have been your mom, I innocently stepped beyond the door. To my shock/ horror I looked into the foggy/ misty mirror and could see you in the shower. Water cascading over your naked body, running down your tits, back, torso and bum. You seemed oblivious to my presence in the shower room, but I was transfixed with sudden feelings of shame and guilt as I stood there like a perverted stepdad, looking at the reflection of my naked step daughter showering. More surprising was the fact that my cock started to twitch and slightly harden as my hand started to drift over my pj bottoms. I felt the length of my 9 inch cock hardening. It seemed like I was standing there watching a porn movie in real life, my hands rubbing my dick over pjs for ages, watching you. This was so wrong I thought, but fuck you looked so hot and desirable, my cock head started to get wet with pre-cum. I felt like a real perv standing watching my step daughter shower with hand on dick. I could see your shower coming to an end. You hadn’t seen me, my hope in any event and to be honest at thst point didn’t much care as I was so fucking horny. I managed to get myself to my bedroom and just as well your mum had left for work. As soon as I had stepped into my room, closed the door and pulled down my pj’s and started to tug hard on my cock. I had the image of your naked frame in my mind as I had the most amazing cum I had had in ages. Fuck, I was a dirty old man..imagine, if you and your mom found out that I was wanking over you my step daughter. So wrong! But at that moment didn’t care…
Source: reddit.com/r/eroticliterature/comments/s0izlc/non_fiction_step_dad_and_step_daughter