Please excuse this lengthy explanation.
I thought about this question again and came to the conclusion that the answer must be our first visit to a sex club.
It was my wife who chose the club, but more importantly, she chose the theme night, which was nudist night. Being naked was no surprise to me, but the description on the website that this night was only suitable for people who already had a lot of experience. Well, we didn't have any experience at all. It would be our first introduction to a different sex life.
My wife was shocked when she saw only men standing at the entrance. She asked the management if there were any other couples present. They reassured her.
After removing our clothes, we decided to explore the rooms.
And so we had to walk through a corridor that was so crowded that physical contact was virtually unavoidable. On one side was a dark room with quite a few holes in the wall. Arms were sticking out of those holes, but also inside them.
First one man joined in, then a second, and they began to fondle my wife. First, they fondled her large breasts. Fearing that my wife would tell us to go home, I tried to gently explain to the first man that we wanted to explore the rooms first. However, my wife interrupted me, saying, ‘It's okay, let him’.
He heard that, too, of course, and took the liberty of kneading her breasts more firmly. She looked me straight in the eye and smiled. The second man moved his hands from her stomach to her crotch. She spread her legs to make it easier for him. She continued to look me straight in the eyes. Her smile said it all.
To cut a long story short, a little further on, there was a large room. The men followed her in. One man had sex with her while the other ejaculated in her mouth. (I hadn't noticed the latter.)
A third man waited patiently for his turn. My wife had sex with him all evening. For over two hours, during which I ceased to exist for her.
Finally, at the start of the morning, twelve men surrounded her. She took each of their cocks in her mouth, eventually wanting them to ejaculate on her body. Six of the men obliged. She urged the other six to do the same, but they couldn't manage it. We decided to go home, but one of the men with an enormous cock held us up. He asked if he could fuck her, but she refused. “Another time.” And that time came a few weeks later at our house.
However, she continued to surprise me. She didn't shower, she just put on her thin summer dress.
When we got home, I wanted to open a good bottle of wine to toast a very successful first evening. She took off her dress and ordered me to lick her body clean. I was surprised at how the dried semen still retained its taste and smell. It took me about fifteen minutes to lick off every last spot.
I don't think I need to explain how the next visits went, with perhaps one exception. An unforeseen gang bang with 10-12 men. She really enjoyed that. She kept talking about it for weeks afterwards. In a positive way...