I think I remember seeing the Smith’s say that if either of them had sex with someone else it’s not a dealbreaker. And it’s long been rumored that they’re swingers.
If this is true this isn’t super surprising. I’m sure Will has knocked down a few of his co-stars too.
They've never outright came out and said that. There's 2 things both Will and Jada have said that people just took and ran with. The 1st was when Will was promoting Hitch and he was asked about doing love scenes with beautiful women like Eva Mendez and he said that he's honest with Jada Pinkett about if he finds a costar attractive because she's not stupid enough to think you can work with beautiful women all the time and not find them attractive. That's what sparked the initial open marriage rumors years ago.
Then there was Jada being asked about it and her response was simply she doesnt worry about Will cheating because she trusts that he will never do anything he cant look himself in the mirror afterwards and if he ever did then there's be consequences. And people ran with that too.