We don't have an accurate count, but my estimate is that my wife has been fucked by about a hundred different guys. Most of these were before we were married, but a few afterward.
She has been divorced twice, so those people we know, who do not know about her very active fuck-life, do understand that she has been fucked by at least two other guys before me.
Since we have been married, she has fucked with her first husband, and he and I have talked about it and he has given me the details. He told me "She's still the best pussy I've ever had!" He and I have even discussed having a three-way with her now, but she will not agree to it. She says it would be "too weird".