Yes, My hubby and I just got home from our 1st DC last week. We did 2 spa things, First, the couple massage is the same as any other one except the SQUEEZE both of you into the same size room one person goes in. It is the same price, the same service , you are just both in the same room at the same time.
Most, if not all the staff is female for the massages. My hubby wore his undies while I went in the buff. They are very good at keeping you comfortable, in fact they do say "dress down to your comfort level" They walk you into the room, they leave, then you get under the sheet and cover up, they come back in and they start on your legs, they move the sheet to just uncover your leg and the side of your hip. (no bottom is shown), they then recover your leg and do the same on the other side. they then cover you back up and pull the sheet down to just the top of your hips (about as low as the top of you underwear line is) then they do your back, and from there its a facial, or whatever else you asked for.
If the 2 of you want to be alone and do the massage on each other, I totally would do the surial bath! lets just say, its great. the two of you are locked alone in a room with some mud ( it's good for the skin)

and all of the massage products to use at your disposial. you could do a mask on you or him, they have another room that is all steamy at first but then once you turn on the water it cools off and you can "play" with the mud and body scrubs. Anyway I will not tell you anymore, but you get 1 hour and no one bothers you until the last 10 min. as a warning. it is 68$ but worth every penny. after you are done there is a shower and shampoo and even hair gel to do your hair. I would do it again in a heartbeat. In fast we did this our 1 day @ sea and it started the cruise off to a great start.
Yes there are showers for you to clean off at but I came out not very greasy at all, and we went right into the adult hottub.