This happened eight years ago.
A friend of mine asked me to help lay a concrete slab at his house. It was a hundred mile drive back to my house and he was going to pay me. We did a great job on the slab and his wife fixed dinner for all of us. We ate and drank. My friend said he wanted to go finish up stuff on his computer which was upstairs.
There was only a couch for me to sleep on and that was in the living room. About a half hour later his wife comes down to get something from the kitchen and decided that she wanted to talk with me. I had already stripped to my boxers and was lying on the couch. She sits down on a chair about five feet from me and starts to talk with me.
After about five minutes of listening to her I started stroking my cock getting it hard, it didn't take very long and my cock was hard and sticking through the fly to my boxers. She would say something and I would just agree with it. Well I started to feel a load coming up from my balls and so my cock was straight up and down and my cum came flying out in about three little spurts.
She only says, "Oh I'm going to bed now." So she had to have seen it but I wasn't really sure.
A week later she calls me with something about a party and asked if I wanted to go with her and my friend. I asked her if she saw me cum. She says, "Yes I did, I thought it was flattering." "Do you want to see it again?" I said. "Yes I'd like to see it again." "Do you want to fuck?" She said "Yes I do." That's all I have for now.