Update!
 

It's been 6 years - but me and my girlfriend (now wife) returned to Bad Wildbad thermal baths for a second blissful week! "Natalie" is now 31.

It was just as good as the first time (see original post in this thread), but this time I did something a little sneaky - I designated a very small towel to my wife so she couldn't entirely cover herself all the time :D It was pleasantly effective! Most of the time it didn't make a huge difference, but rather frequently there were moments when she was simply unable to cover herself and had to remain completely exposed for lengthy periods of time!!

After spending time in the saunas we liked to lay on a lounger in the cold (8'C) open air, but this requires visitors to place their towel on the lounger so that everything from their ass to their head is resting upon towel, to stop sweat etc. from getting onto the lounger. The great thing is that, once Natalie lay her towel down, there was not enough to cover her front! On endless occasions she was the only female completely exposed to the open air, her body steaming in the cold! It was glorious. She maintained her calm whilst so many men looked her over from head to toe.

On other occasions we spent time on the inside loungers which was even better - this was in an area where all other participants were wrapped in their towels or bath robes, but Natalie was forced into completely full frontal nudity for lengthy periods of time.

The hilarious thing is that, for something like 2 Euros we could have rented a full bath robe or towel, but she's so "tight" with money she refused :D Another hilarious thing was that her towel was pink, mine was blue, therefore she resigned herself to the fact that there could be no swap of towels - who says traditional gendering of colour is a bad thing?! haha

Another fantastic moment was getting lunch inside the baths: her towel was simply too small to wrap around her whole body. She could cover her bottom half or her top half, not both. In the lunch area everyone is fully clothed in robes or towels, but she was the only one topless, and she remained topless when she went to collect the pizza she ordered and return her tray afterwards. And if she wanted to recline so her bare back touched the seat, again she had to expose herself entirely whilst everyone was robed. It was the best.

Throughout the week Natalie became more and more relaxed. We spent a long time almost lying on top of each other in the shallows, Natalie's breasts breaching the surface, in a casual caress, and all the people walking past could see her entire naked body. On the last day, in the pool, I massaged her shoulders whilst she pushed back against my erection, although other couples were more progressive in their affection and, for all I know, were having nice slow sex as it grew darker into the night in the outside pool.

I fully recommend the Palais Thermal in Bad Wildbad. It's amazing.