An indecent proposal

So a quick background, many years ago while having drinks, somehow my wife and I got on a conversation about marital affairs. Long story short in the end she said if I ever thought about it, I had to find her a hot guy to fuck too and then she’d be ok with it. Her thought being that if I was going to do it, I had to know she was doing the same. Otherwise if I cheated she’d take everything including my balls lol.