Thanks for your kind words.
For me, the great turn on is the knowledge she is free to have sex with anyone she likes, at the time of her choosing.
She can meet a guy in a business trip and fuck him the same night and never see him again or have a regular lover in our city. I never know if or when she will meet a guy that will spark her interest and this is extremely exciting for me, it always keeps me on edge.
The reality is that she doesn’t fuck lots of guys. She is very selective and she prefers quality to quantity. Since we opened up our marriage 5 years ago she had sex with maybe 10 guys. By the way, I am not counting the swingers parties we used to attend (when we became a cuckold couple we stopped going to swinger parties for couples for obvious reasons) where she would have sex with multiple guys. Some of those 10-12 guys where one night stands while others where more regulars guys.
What I want to say is that the thrill for her and for me is to know she has the freedom to do it. If she does fuck other guys or not becomes almost secondary.