I had a similar experience once while anchored up near one of our barrier islands. A large party boat cruised up to the island‘s pier.
Everyone on board was drinking and chatting happily as they milled around on the pier and boat deck.
My lady and I were kissing and discussing how horny we were. I told my lady I thought it would be fun to screw while watching the boat load of people on the other boat and pier. After all, they weren’t close enough to make out individual faces and they would never hear us.
My lady giggled and wiggled out of her clothes and assumed the doggy position on a towel. My dick was steel as we went at it.
My girl quickly worked herself in a squirting orgasm while I kept pounding her pussy. I could lift my head to peer towards the pier and other boat as I fucked.
I gave my lady a running commentary of what I saw and wondering if any of those people had a clue we were having intercourse a few yards away.
Finally, my lady said she wanted to look and wanted on top. We switched. She mounted me reverse cowgirl which gave her the glimpses she wanted while I continued fucking her hairy pussy.
I couldn’t resist getting some pussy juice on my finger and began playing with her anus and exploring her rectum. She told me my finger felt good a bent forward to give me more access.
I could feel my dick thrusting in and out of her vagina and the pressure from my finger made it better. My girl turned to face me, looked me in the eye and said, “Fuck me harder.”
That encouragement sent me over the top. I came in buckets and my girl did too. Soon the party boat pulled away and headed to shore as we settled down to spend the night.