You know, I came in, ready to defend the dude, because I'm all for having weird fetishes.

But I thought that he and this work-dude had like a weird fetish connection -- like, they accidentally found out he liked banging wives, and he wanted his wife banged through some weird awkward situation we'd see in a rom-com, so it would make sense if the guy knew before you, OP.

But reluctantly agree? WTF. So this dude just asked his poor co-worker, "Wanna bang my wife? No. SERIOUSLY. Wanna bang my wife? ...Plz?"

OP, you and your husband need to have as long talk. IF you want to try, you need to set up boundaries. And not pick a guy who gives a reluctant 'yes'. There's a whole community for this, there's guys who specifically want to have sex with wives with no further connections. Don't go into this with a newbie who is just as new to this as you are -- you'll be confused, he'll be confused.....It's not something to dip your toes with.

Look up this fetish on your own, see if it interests you at all. Don't let your husband see you, don't let him influence you. Talk AFTER you look on your own, ask what HE likes -- and look again, and see if his opinion made it more hot for you. If not -- not for you. But if curious -- then, like I said, boundaries, and look up people also into this fetish. Not come random work-guy.

Good for you for being open-minded, but your husband needs to calm the fuck down. Whatever made him have a hard-on for this specific dude, you two need to talk it out so you can be aware of why the hell he's losing his head like this.

Just talk. Talk openly, talk calmly. The goal should be understanding the fetish, why he likes it, what he imagines it will be like, and then you responding which parts you're comfortable or uncomfortable with, which [parts aren't realistic, and then calmly seeing if you two have the possibility to mesh or try something here.

Good luck, OP. Nothing wrong with being into it -- nothing wrong with not being into it. Just be you.