The Valentine Beach

Curt and Cindy are a hard working couple who tasted success, then lost it, then got it back again.
Then, they decide to take off Valentine's Day week and go down to sunny Mexico, along with several old friends.
Once they get there, Curt discovers that it's to be a topless beach week for the ladies, including his normally shy wife.
Cindy operates a gym and is now easily the best looking of the ladies. She seems to enjoy the looks that she gets from the men and also the women.
Curt and Cindy gradually rebuild the romance of the early days of their marriage.
Cindy discovers that she can really enjoy sex, without becoming a slut.
Curt enjoys the new Cindy.
The other couples spend most of their time swapping partners, instead of rediscovering themselves.
The topless ladies then become nude ladies and things descend into a bit of sexual chaos.
Cindy discovers multiple climax and she and Curt discuss some nude pictures, once they return home.
It's a real voyage of discovery.