Pool Night

We have a pool at our house which my friend Devon and I use all the time. Our moms, both divorced, are best friends and have been for some time.
Last summer the weather was very hot, and one evening Devon and his mom had dinner with us. We were all complaining about the heat. It was starting to become dark and our moms teased us and said how we could always go skinny dipping in the pool. Well, Devon and I both grinned, and we said, okay. So we went out and got naked and jumped into the pool. Our moms came out and had a drink while they watched us splash around.
That was fine until Devon and I got out and, no surprise, we both started to get an erection. Our moms thoughts this was funny seeing their sons this way. My mom laughed and asked if we were going to go and take care of them together, and his mom said how that would be convenient. Devon and I looked at one another and we went in and upstairs to my room. Just feeling silly and uninhibited, we started to make out. It was not difficult to let one thing quickly lead to another and I ended up having anal intercourse with Devon.
When we came back downstairs half an hour later our moms smirked and asked if we had had a good time. We both so said that we did. In the year since then Devon and I have been having this sort of gay friendship and our moms have no problem with it.