I feel like I just have to chime in here. Please feel free to let you wife read this post. I will share with you our experiences over the past few years. Others may have a different experience but this is the honest truth from our trips. We have stayed a total of 9 times at all 3 Desires (Damn you Cabo....Damn you). In all of our visits combined I can count the number of PDA's I have seen on one hand, and still have a few fingers left.
the impression I get from reading the forums, and I say forums because there are other adult forums that are even more explicit than this one, that the adult resorts are some kind of Roman Orgy. I have found the opposite to be true. I have found Desire, especially Pearl to be an extremely Classy place. We do not go with a group, I believe this is a big difference. We make it a point to try and travel during off peak times. It doesn't take a rocket scientist to figure out if you are there at the same time a lifestyle takeover is there you are probably going to see a little more activity than usual. What makes this a magical place is that if you want the "more activity" you can book during a takeover.
At both Desire resorts they have a pretty strict policy of no PDA's at the pool and beach. I can say that they enforce that policy.
We have enjoyed the hot tub on a regular basis and have not seen anything I would consider over the top at all. Again, Our experience is that the most over the top thing we have seen is maybe being in the hot tub and looking at the beds and seeing a lady's head bouncing up and down. If that bothers you just turn around and face the other way.
My wife is an early riser so we very rarely go to the hot tub after the nightly entertainment. That is when most of the action takes place. But that's not always the case either. a year ago in February we were in Cabo (hang on give me a second, OK I'm back) and decided to sneak out of the nightly entertainment early and head to the hot tub. we got there about 9:45 and My wife and I were the only ones in the hot tub for almost an hour. Finally we got bored and left.
I guess the point of this rambling post is RELAX, It' not as bad as you think it is. Here are some pointers if your are nervous.
Book during the off peak season, Sep-Nov
Check the calendar on this site and book when there is NOT a group
Avoid the hot tub after dinner, we have found happy hour to be rather tame
Hang out on the beach, it seems to be very quiet
Have fun, It's your vacation do what you want,