I moved to the Netherlands a few years ago from the UK to live with a Dutch woman I met whilst travelling. She introduced me to the spas and saunas that are in and around the city of Amsterdam. There is a big difference between the ones I had visited at home in the UK and my experiences here. Firstly, the spas here are much bigger and secondly, they forbid the wearing of swimwear, meaning that they are all nude.
This took some getting used to when I moved, but my girlfriend was totally cool with stripping off in the mixed sex changing rooms and donning a dressing gown before entering the facility.
Whilst I was initially quite worried about what it was like, within a short time I got used to both wandering around naked and seeing people nude. The one in Amsterdam I frequent has bodies of all shapes and sizes. At one end of the spectrum there are rowers from the nearby Olympic training venue who are young, buff and beautiful. At the other end there are retirees who go with their partners or friends. On top of that there are often mothers out with their daughters, same-sex couples and men and women who are there on their own.
The spa is huge. In the main building there are footbaths, three or four saunas, plunge pools, rest rooms, a steam room and a couple of jacuzzies. The centre piece is a swimming pool that starts indoors and extends out into the garden that must be at least 60m in length. In the garden there are dozens of sun loungers around the pool and at the far end a large round open air jacuzzi that is big enough for 20 or more people. Circling the jacuzzi is a much smaller building that contains more saunas, a WC, and a large steam room.
My girlfriend and I spend a beautiful day there relaxing, spending time in various parts of the facility as well as reading on the sun loungers.
In the late afternoon my girlfriend fell asleep reading her book and I decided I needed a pee so head off towards the end of the garden to use the facilities. Having done that, I was tempted by the jacuzzi so rather than heading back, slid in. Unlike most jacuzzies that force you to sit on some sort of step, this one was sculped into a curve in a way that meant that you lay almost flat in the bubbles. Guests' heads rested on the edge of what was basically a large shallow bowl, with feet pointing towards the centre. It a gorgeous summer day in August, so the place was quite full and there were only one or two spaces left in the jacuzzi.
I had taken a spot opposite the steps quite deliberately so that I was able to see people coming and going. A couple stepped out -- they both had beautiful bodies and was transfixed by the guy's bubble butt and his girlfriend's soft curves. She was shaved, so I could see the outline of her labia through her thigh gap as she got out. Next up four people stepped in -- they were a mixed sex group that obviously knew each other well and were comfortable in each other's company. They laughed and chatted as they got in. A few more people got in and as space was running out, the people around me shuffled up to accommodate the newcomers.
That was when I felt it. A brush against the side of my thigh as my neighbour adjusted his position. Having watched people coming and going for a while, my cock was semi hard, but luckily also covered by the bubbles of the jacuzzi. The brush appeared non-sexual in nature, but nonetheless took me by surprise.
I thought nothing of it but rather went back to daydreaming and body watching. A few minutes later, I was brushed again from the same side. This time, rather than feeling a hand or an arm that was placed accidently and removed quickly, the hand appeared to linger. It felt like the person beside me had rather slowly and quite deliberately slid the outside of his hand down my thigh.
I looked across to see who had done it and found my neighbour staring straight forward like nothing had happened. He was buff, late 30s, and blond. Whilst most of his body was under water, the bit I could see oozed sex. The muscles across his neck and chest were developed and his clean shaved face looked lean. I wondered if I had just imagined the touch, since there wasn't even a glimmer of recognition on his face that anything untoward had occurred.
I decided that maybe it was an accident, but also knew that my body had started to respond to being touched. My cock was stiffening under the water and was being massaged gently by the streams of the jacuzzi. I tried to focus on anything but what had happened to avoid my now almost fully erect cock breaking through the surface of the water and betraying me.
It was then that I started to wonder where his arm was. Although masked by the jets of the jacuzzi, I became aware that the side of my thigh appeared to be getting touched, with almost imperceptible softness by the guy beside me. It was so soft that I wondered if I was imagining it. But the possibility that he was trying to come on to me got me harder than ever.
At this point the bubbles stopped. The jacuzzi worked on about a 20-minute cycle and it was necessary for one of the guests to push a button to start it up again. I was aware that my cock would be pretty obvious in the flat water, so hoped that someone would get the pumps running again.
After a few seconds, nobody had pressed the button so I was starting to feel a little panicked. Then my neighbour sat up. He very deliberately looked towards my crotch area, before making eye contact, his left eyebrow up an almost imperceptibly small amount with a cheeky smile darting across his face. This all happened in a fraction of a second before he moved forwards to press the start button on the jacuzzi.
As he returned to his position, his arm ran the length of my thigh, starting around my knee and finishing around my bum. Again he stared straight ahead as if nothing happened, and again it got my cock raging.
At this point the neighbours on my other side decided to leave. It left me in a quandary. I was enjoying these brushes with my neighbour, but was not 100% sure whether he was coming on to me or not. I was also in a mixed spa where sexual contact was clearly off limits, so didn't know how to reciprocate or how far things would go. I also knew that my girlfriend was less than 20m from me asleep or reading a book. I wanted to stay close to him since it was a fun game, but on the other hand there was a large space to my right from the guys who just left. Not filling the gap would look slightly odd given how tightly packed the jacuzzi had become.
So I decided the best thing to do was to turn over. Although designed to be used face up, I noticed that occasionally others would flip over onto their front in the jacuzzi, and that seemed like a good solution. I could make a move without looking unfriendly, keep within arm's reach of my neighbour, whilst at the same time hide my hard cock.