One of the most exotic acquaintances Anna had back then in Saint Petersburg before we moved to the USA, was her encounter with two Chinese men, father and son. She met them at a local nudist beach where we used to hang out quite often at summer time for several years. I was on a business trip, quite a long one, three months long.
As we had agreed a long time ago, at the very beginning of our life together, she was completely free to meet and sleep with whoever she wanted. Yes, with my permission. Not really just a permission, I really enjoyed her being a married but available woman. It was a period when we stopped hiding her high appetite for sex and her submissiveness, which manifested in her inability to say "no" to any man that would hit on her. She was not just libertine, she was openly promiscuous in a way we both like it.
During my business trip we talked over the phone about once a week since the intercontinental calls were quite expensive. I was also getting emails from her every other day with some news about her sexual life. That's how I learned about her new Chinese acquaintances.