They have been together for almost 10 years. For a long time I have made it clear to her how good she looks. 5'9" or so, Thin with really small titties. I've often made comments about how great they look. She has at times flashed them to me and allowed me to play with them. There have been times we were together that I have tried to have sex with her. That always ended up with me telling her I needed to jerk off after her teasing, which I would do. Yesterday she came over while I was cleaning the pool. I mentioned she should come in, naturally she didn't come prepared to swim, so I told her to go in the house and get a tee shirt to swim in. It took some convincing but she did. She got in the pool in panties and a tshirt. I made some comments about her titties and how good she looked and started playing with them. I got hard and she noticed, I rubbed up against her like I have done before. We talked and touched like many times before, When finally I said we need to fuck, she asked if I was sure and I said absolutely. Well long story short I moved to the pool ladder and sat on the step and she sat on my cock and fucked me. Afterwards we swam and floated around naked, she even laid on a float and made herself cum. Hopefully this wasn't a 1 time thing.
Wow! How old is she and does your stepson know about any of this. Not judging I probably would have fucked her too.
As far as I know he has no idea. She just turned 32. We had a little discussion afterwards but nothing major. as I said hopefully it continues.