From what we heard and researched, some employees (either females or a male and female) massage you both, tickle you with feathers, etc as you are both naked. Then when you are both horny enough they leave the room and let you and your partner go at it as you wish. Personally, after being at Temptations 2 weeks ago, we ultimately decided to skip it and save $400. We opted to just have sex in our balcony instead, and from the feedback we got, those that saw us really enjoyed the show and I still have my $400.
Just do a search on "couples sensual massage" and you will have more reading material than a dentist's waiting room.