OK, there is certainly plenty of BS on this forum, but there are also people with experience whom you should listen to. We've tried to tell members on here about the REALITY and possibilities of allowing your wife to become sexually active with others.
The idea that you are going to be able to control your wife's sexual behavior once she's started fucking around with other guys is a bit over optimistic.
Some wives will obey all the rules and quit when asked by their husbands. But....you've been told that some wives are going to "naturally and inevitably" break the "rules" and once "bitten with the extramarital sex bug" will NOT quit. You, as a husband who encouraged this, will have to learn to just deal with it. Seriously, your wife fucks now, other men know she fucks and maybe you don't feel it anymore, but other men just want pussy and love to fuck other men's wives if they are available. You should pursue your own kink with other people because your wife isn't interested in that. Just focus on keeping your marriage and relationship solid and let her have sex as she pleases.