Fucked my best friend’s son while she slept upstairs [FM]

I’m a long time lurker on this sub and a first time poster. I’ve got so many naughty stories to tell so I figured why not come here and tell them? We can all get a little bit of fun from them, I’m sure.

This story begins when I was 44 (I’m 46 now) and single. So was my friend. And one Friday night – the first in a looooong time – we decided that we’d get dressed up and go into town. I decided to stop at hers as she lives about half an hour away and the taxi price increased drastically in that half an hour so it made sense for us to stop in one place.

I went round and got ready at their house, where she lived with her 18 year old son. He was also going out with his friends but hadn’t left before I got there. When I finished getting ready I was wearing a figure flattering black dress with matching black heels. Beneath that dress was a little thong, but no bra. I’m 5’6 with a good figure. I’m no model but I’m slim with toned legs, a good size bum and a rather exciting DD bra size. Enough to impress an 18 year old boy at least, as I could tell when he entered the room and struggled to avert his gaze from my cleavage. My friend caught him looking and gave him a bit of a scolding, but I just giggled, winked and blew him a playful kiss out of the sight of his mother.