I had never (and i mean never) been attracted to my sister-in-law. She was into physical fitness in a big way and was a personal trainer at a local place. Not my thing. I like my women softer and prettier. Not to say she was not good looking. She, of course, was at five feet tall very shapely and always tan. I imagined her with "abs" though I had never seen her in anything more sexy at the family house than plain old shorts a t-shirt and tennis shoes.
One could tell that to her, her liability was that her breasts looked a size too big and were obviously not "hard body" material as they tended to move gently as she moved. In spite of things it did give her a very feminine aura in spite of her hard body almost "asexual" persona. So far as i knew she had no boyfriend and being alone suited her.
One weekend, however, this all changed. We were at the family house to begin with but then my wife and her family went to visit out of town relatives while I stayed at the house and nursed a sprained ankle from playing on the local soccer club. But, I was not alone as my sister-in-law just didn't want to go (visiting bored her) so she vanished into the garage with some exercise equipment. Later on she appeared in white blouse, pink skirt, and white wedge sandals and announce she was going out to do shopping and get some dinner and would not be back until late.
As things sometimes happen, the family called and said they had decided to spend the night in Roanoke and would be back tomorrow afternoon. Basically, that left me "alone" so I sat in the TV room with my foot up on ice and watched endless movies.
I fell asleep in the recliner... and woke up about one am to a dark and silent house. As sometimes happens I woke up "wide awake" and hungry so hobbled to the kitchen and made a sandwich and hobbled back for more TV. They had a radical satellite dish so I went on a major search to find something new. Well, new indeed. At the upper end of their channels i found a half dozen that were porn that even though not on their list generally were allowing access this weekend.
So- I "porned out" for a while and went through phases of being really turned on and rock hard to "ho-hum" and tried another one. In spite of things I decided to keep my pants on and wait for some real excitement when wife was to return tomorrow. Eventually i burned out on the porn and turned it off and went and found my way to bed.
A few hours later I woke up with ankle throbbing and hobbled out in search of some pain medication. On my way down the hall to the bathroom I heard some TV noise faintly from the room I had previously been in down the hall. My heart thudding now- if it were the sister-in-law and saw that I had been watching porn I could be in real trouble! I snuck up to the door, which was not all the way closed, and from the dark hallway looked in.
Well sister-in-law had found the porn channels after all. She was in the recliner with it all the way back, her legs spread, and her hands under that pink skirt rubbing her pussy through her panties. OK then. Now that was hot. I stood and as i watched she arched up and pulled off her panties and hiked up her skirt on the recliner and with her sandals on her feet resting on the arm rests of the chair now spread her pussy with one hand and slid several fingers into her obviously wet pussy as she watched whatever was happening out of site on the TV.
I was locked onto the sight. First thing was that I saw her "perfect athletic body" also included a nice and perfectly shaved pussy. I would not have imagined that in a million years. Next was that she was getting so wet that it was running slowly down from her pussy to her ass. Now that was hot.