We had no idea. We both realized at the now defunct Cabo resort that we liked to "have sex out in the open" as one of our new friends, "N" noted. We made love in the hot tub forever. I sat on the wife's face on a bed near a fire pit when it was cold. But probably the most wonderful experience, (and our first) was when we were standing up outside the hot tub with me making love to my wife from behind. We weren't sure anyone even saw us but the idea was quite titillating!
The next night a young woman came up to us in the hot tub and said, "I saw you guys last night. You (me) were really hard, and you (my wife) was standing up and touching yourself while he ... from behind. It was really, really hot."
Well, to be honest, that turned us on.
Funny, but we'll be back (only in Cancun) in 7 1/2 days, but who's counting?