I married Jenny in September last year and since I already owned my home, in a desirable school district to boot, we decided to live there for a few years until her kids were out of school. She had 3 kids from a previous marriage and since I was never able to have kids I welcomed hers into my life and of course, into our home. Mary was 18 and attending college, Trevor was 15 and in high school, and Cade was 13 in middle school.
Our courtship was short as we fell for each other right away. Jenny had a killer body, a beautiful face, and an even better personality. We had frequent sex as her libido matched my very high one. So I had a new wife that was sexy and horny, and 3 kids that were already teens. Instant happy family.
Since we jumped right in to marriage we hadn't talked too much about personal stuff. Jenny knew I had guns in the house but didn't know that I kept a safe with 17 weapons in it, kept a sidearm beside my bed, and carried one concealed on most days. Because of the value of my weapons, and other household items, I also had security cameras throughout the house. Not in the bedrooms or bathrooms, but I had nearly every other square inch of the house monitored. I spent quite a bit of money for a state of the art system.
The kids moved in the day we returned from our honeymoon, two weeks after the wedding. Everyone got settled in and on the following Monday we all went about our normal busy schedules.
Cade and Trevor went to school, Jenny went on to work after dropping the boys, I went in to my office, and Mary slept in because she would "never take an 8 o'clock class on a Monday".
About 9:45 I received an alert on my phone that there was movement caught on one of my security cameras. I opened the app and saw my new step daughter making herself breakfast. I forgot to turn the motion alerts off now that I have a family with varying schedules.
Mary was standing there in a pair of men's pajama bottoms and a white tank top. I felt a little guilty but I was thanking myself for buying good quality HD cameras because I could clearly see her nipples poking through the thin fabric of her shirt. I hadn't spent a ton of time with her so this is the first time I got a good look at her and I realized how sexy she is.
She was about the same height as my wife, 5' 5", and had the same size boobs, D cups. But of course given her young age her tits were much more firm and sat higher on her chest. She also had a much flatter and tighter stomach that Jenny has. My wife is a knockout currently but now I was seeing what she might have looked like 20 years earlier.
Mary ate breakfast while staring at her phone and then got up to clean her dishes. She shuffled through the hallway, up the stairs, and into her room, unknowingly on camera the whole time. I found myself wanting to keep my eye on the camera app to see if maybe I could catch another look at my sexy step daughter.
About 5 mins later, when I was just about to close the app and put my phone away, Mary emerged from her room, now wearing only panties with the same thin white tank top. She was talking on the phone and slowly walking through her new home checking things out. She would stop to open a drawer, flip a switch, or peek inside a door. Her tiny bikini panties were creeping into her ass as she walked around, forming a small triangle at the top of her perfect round ass.
When Mary ended her phone conversation she plopped down in my favorite plush chair and put her feet up on the ottoman. Her legs were spread and her knees up as she sat like a guy and picked up the tv remote and aimed it at the television. The camera angle couldn't have been better as I had a straight shot from in front of her. I was looking directly at her silk panty covered pussy and her big firm tits stretching the white fabric of her tank top.
I couldn't believe what I was seeing. My dick was growing in my pants so I went over and shut the door to my office. I have actually jerked off in my office before when I felt I needed the release and this could potentially be one of those times.
Turns out my gut feeling was right. I don't know if Mary saw something on the tv that she liked or if she just felt the urge, but her hand started circling her own tits. She massaged them both and gave a sexy little pull on each nipple to ensure their hardness. My cock was at full attention now! Then Mary put her hand to her mouth and licked her fingers and then slid it down inside her silkies and proceeded to rub her pussy.
I have to tell you, part of me felt guilty that my new step daughter didn't know about the cameras. The other part of me, the 7.5" veiny hard part, was happy as hell that she didn't know! You can guess which part won the battle of whether I should continue to watch.
Mary continued to rub and finger her pussy underneath her panties while pulling her top up over her magnificent tits with the other hand. After revealing the big jugs she looked down at her own body in satisfaction.
She played with her tits and wet pussy for about 5 minutes, eyes closed now and her head laying back on the chair, until what could only be an orgasm swept over her. I must admit I had been stroking myself at the same time and blew my load into a handful of Kleenex while watching her recover from her climax.
Mary eventually got up, got dressed, and left the house. I closed the app and got back to work although for the rest of the day I was conflicted in my mind on telling my family about the cameras or keeping my mouth shut and hopefully enjoying more solo acts by my step daughter. I came to the conclusion that I don't need to tell them. Even if my wife found out I wouldn't never have admit that I saw anyone doing anything. I could just brush it off and say "oh yeah, sorry, thought I mentioned it".
When I got home Jenny and the boys were home. My wife was preparing dinner and I tossed the football around with Trevor and Cade in the backyard. My wife called us in for dinner and when we got in the kitchen Mary was already sitting at the table. Needless to say, I felt awkward since just a few hours earlier I saw her naked tits and watched her masturbate in her panties. She was of course clueless as to what I saw so I'm sure my awkward feeling was only internal. We all talked about our day while I reminded myself what Mary's firm naked tits looked like.
All that night and the next morning I debated in my head about watching my step daughter without her knowledge. I mean on the one hand she's 18 and not my biological offspring. On the other hand if I somehow got caught my wife would be livid and probably want a divorce.