I call BS. Most likely these men are just betas and the women kinda enjoy it being fucked in front of their eyes. These women fucked their minds so hard they let other men fuck their wives.

I once had an ONS with a so called "open relationship" girl. She fucked me quite hard and seemed very hungry for cock. I laughed after the sex because she was such a whore. Right after we did it two times and chilled a bit she told me "She needs more cum" and started sucking again. I felt like in some porn.

Well as nice as it was, she told me then shes in a open relationship (before i thought she was single). Why did i think she is single? Well turns out i saw her bf at a party but he was so submissive and beta that i instantly thought he must be friendzoned. She also told me that he bitched around that i had sex with her and i was like "omg how awful is that".

Imagine how manipulated those men are. They have like 0.000 manhood left. Its worse than being married.