All of my wife’s work colleagues know. Made the mistake of fucking a colleague and his wife found out and blabbed to everyone. On the other hand, it is pretty hot to visit her at work when I know they all know my wife fucked around.
Otherwise i find it delicious that no one else knows and would never suspect that my shy, sweet little wifey has been fucked by 20 different men (all singly mind you) in over 400 sessions since we married:)