I was spending the week with my recently divorced older sister. I had recently started my own business installing home security and home automation systems and had some work in her area about two hours from my home.
I never understood my sister's divorce. I liked her husband Tom. He was a big gregarious guy who ran a very successful contracting business, but at 27 years old my sister had decided it was better to part as friends and before they had children.
Jess got the townhouse in the divorce and immediately wanted me to install a full security system including motion detectors, cameras and alarms. My sister lived in a relatively safe area but I did as she asked and taught her how to check on her home from her phone, or any computer with an internet connection. She could view the cameras and a special feature would alert her if any door or window was open or any motion is detected.
Still staying at my sister's townhouse, I went out on a call early one morning. I had a full day installation in a very large home about an hour away. About half way there, my phone rang. Something had come up and the homeowner had to cancel the installation for that day.
I turned the car around and stopped for breakfast before heading back to my sister's.
It was still early and thinking that my sister might still be asleep I entered her house quietly. Putting down my bags in the foyer I heard what could only be described as "grunting" noises. Carefully I walked through the kitchen and peered around the corner into the living room.
There was my sister, naked and bent over at the waist with her hands on the ottoman below her.
Behind my sister with his pants at his ankles and his dick apparently up her pussy was Tom, her ex-husband. In front of my sister was some other guy, his pants at his ankles and his dick in her mouth.
I stood there frozen, but no one had noticed me. I stared for just a few moments at my sister's thin pale and freckled naked body, her smallish tits pointing down at the ottoman with amazingly erect nipples. The three of them barely moved. Tom in back was pressed fully into Jess's ass cheeks with his cock all the way in my sister, and the guy in front was in her mouth up to his pubic hair, the three of them grunting a little but barely moving.