This is a work of fiction and is not true. This is a fantasy that I have but will more then likely never happen. Hope you enjoy it and your votes and comments are appreciated. Any comments about this being sick will be reported to the administrator of this site. These are my feelings and fantasies, if you don't like them then I don't know why you are on this subject, let alone this site.
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I married my wife a little over 7 years ago and she had two daughters from a former marriage. Their names were Brenna, 12 years old and Stacy, 11 at the time. While things between my wife and myself were good at times, we also had our rough times. We did the best we could and I pretty much accepted the girls as my own. We did all the family things, took vacations, went out together and pretty much acted like a whole family. Things between my wife and I pretty much went south in the sex department a couple years after our marriage, I don't know why, maybe money, maybe we got married too soon, I don't know why, but things weren't as good as we hoped they would be. Don't get me wrong, we got along great, just my sex drive was just higher then hers I guess, that led me to look for sex from others, sometimes I would find it, other times I would end up at the computer seeking sex sites to stroke off too.
The first time I got caught stroking at the computer was by my wife, she came home early from work and I was so into the scenes on the screen that I didn't notice her pull in, she threw a fit and demanded to know why I was doing that. I readily explained that it was because she never seemed to have time for sex. She just threw up her hands and told me to do what ever I though I needed to do, just leave her alone and not to let her catch me again. I just smiled and gave my hard cock another squeeze causing her to leave the room in a huff.
I had the pleasure of watching her two kids grow up; up and out I should say. Their mom was very blessed in the breast department, I think that's why I hooked up with her in the first place, I am definitely a tit man and both her girls took after her in that department. By the time Brenna was 18 her tits had really grown. It wasn't hard to notice, her shirts got tighter and her swimsuit fit better almost on a daily basis. Stacy was a year behind her sister in age and hadn't begun to develop as fast. Brenna's chest grew by leaps and bounds while her sister's chest took the slow road developing
I had a neighbor at the time that had a pool and was fortunate enough that he invited us over to swim throughout the summer. Like I said before I was lucky enough to watch Brenna's chest grow and her swimsuit fit tighter and tighter. Her top kept getting tighter because her body wasn't growing at the same rate and she had to buy a smaller size for the bottoms to fit, which really allowed her chest to shine. On more then one occasion her top would slip up and her nipple would show either from diving in or rough housing with her sister or a friend. A couple times her entire breast popped out and I was lucky enough to be looking that way. The teenage breasts always impressed me, so tight and pert, I swear lead weights couldn't pull them down from seemingly perky ways.
I tried to not get caught looking at Brenna as she grew up, I know more then once my wife caught my look but either dismissed it or ignored it. Brenna was 19 when she graduated high school, so I insisted immediately she get a job, but my wife didn't agree with me. She thought that she needed some time off between school and getting a start with her life, so I lost that argument. Brenna spent the entire summer in my neighbors pool, her sister was too busy running around with friends to join her, so she usually went alone, my neighbor didn't mind, I think he enjoyed the view as much as I did. That summer both the girls had dark tans and I'm sure Brenna's tan had few or no tan lines, due to the fact that no one was usually home when she went to the neighbors to swim. I figured this out by catching a conversation between Brenna and Stacy where Brenna told her sister about skinny-dipping in the neighbor's pool. My cock sprang to attention just thinking about my now mature and very sexy stepdaughter swimming and tanning naked.
I work an off shift that sometimes requires me to stay late at work, sometimes till early morning. It was one of these nights that I found out that Brenna was enjoying more then sun. I had gotten home around 2 am that night and walked quietly through the house toward my bedroom. I passed Brenna's room and noticed a light on; I was about to enter the room to turn the light off when I heard Brenna moan softly. I leaned in closer and heard her bed squeaking slightly. I then heard moans coming from another person; Brenna was getting fucked in my house! I listened closer and heard her talking dirty, telling the lucky guy to fuck her harder, she loved that. The squeaking bed groaned more and so did her moaning. I could just imagine my sexy stepdaughter getting fucked doggy style, her tits swaying to every thrust. My own cock had swelled to larger then life proportions and strained at the jeans confining it. I knew I had to jack off and backed slowly down the hall, until I closed the bathroom door behind me. I pulled my cock out and squeezed it, bringing a huge drop of precum from the engorged head. That was all I needed and jacked my cock quietly, fantasizing I was fucking sexy Brenna. Finally after five minutes my cock shot a huge load on the floor, I usually cum a lot but never as much as I did that night thinking of fucking Brenna. I walked back outside and noisily made my way back in, making sure that I made enough noise to alert Brenna to my arrival. Sure enough as I turned down the hall again the light snapped off and I heard her tell him to be quiet I was home. I closed my bedroom door and held my breath, hoping to hear him leave. To my surprise I heard the bed begin to squeak again and him roughly tell her he wasn't done, Brenna told him to hurry, she didn't want to get caught. I listened as the bed squealed more till finally it stopped; I knew he had cum. I heard her door open and close again, and finally fell asleep thinking of her fucking.
The next morning my wife left for work and I was too groggy to talk about what I had heard last night. I fell back asleep and woke a couple hours later, around 9 am. I got up and went to the kitchen for coffee, I was wearing sweat pants and shirtless. Brenna was in the kitchen getting some cereal and muttered a 'good morning' to me. I nodded and noticed she wasn't wearing a bra, her nipples poking through the shirt she wore. She asked me when I got home and I told her around 2. She said she wasn't sleeping very well and heard me come in. I smiled and asked why she didn't sleep well; she made something up about not being tired and her bed being uncomfortable. My cock was swelling from thinking about her getting fucked and her obviously hard nipples. I tried not to turn toward her, knowing my cock would show easily through the sweat pants I was wearing. I asked her more about her bed, what was really wrong with it? Brenna just replied that it was lumpy and uncomfortable to sleep on.
I made up my mine now or never and turned toward her, wanting to see if she noticed my crotch. Her eyes lit up and I was sure she noticed my growing bulge, I though that her nipples hardened even more then they were. I said something about it maybe being time to get her a new mattress; she nodded and said she would really appreciate one. I swear I thought she even winked at me. I finished my coffee and went to get dressed, thinking she would as well. I returned to the kitchen and found she had changed. My cock leapt as I rounded the corner and found her wearing a sheer top and cut off sweat pants. She walked up to me and asked if I liked what I saw. I nodded and smiled at her. She then asked me if I heard her last night. I replied that I had and wondered if her mother knew, she said no and told me that she didn't need to know. I laughed and asked if I knew the guy, she just smiled and said yes, he was the neighbor's son. I then asked her if she wanted a more comfortable mattress or a quieter one. Her face lit up and you could tell she was working it out; she smiled and said a quieter one would be nice.
"Ok, how much did you hear?" she asked.
"Enough to know you aren't a virgin any more." I told her.
