Omg.
TALK TO YOUR WIFE ABOUT YOUR DESIRE TO SEE HER FUCK ANOTHER MAN ALREADY!
Good Lord, man! As Yoda said, "do or do not! There is no try!"
Dude, I'm truly sorry this is so hard for you. It sounds miserable. I'm sorry it's easier to copy/paste the same sob story on here every week or two than it is to talk to your life partner. But if you don't talk to her, it won't happen. If you CAN'T talk to her, you can't handle being cuckolded. This ******* is not for couples who can't be honest with each other and don't know how to communicate.
What do you think is going to happen if the two of you start this ******* and one of you feels unsure or uncomfortable about something, if you can't talk it out? What if she starts to worry she might be developing feelings for someone but doesn't want to stop seeing him because she thinks it's what you want, AND SHE CAN'T TELL YOU IT'S HAPPENING? Or what if she feels like you're trying push the idea of other men on her because she's not enough for you, and worries that the reason you're suggesting it is because you have an ulterior motive to be with other women (which is a very common reaction to learning a husband wants to be cucked)? Do you imagine those would be easier conversations to have, for a couple that can't even admit a sex fantasy?
What do you imagine will happen if you tell her you've sometimes wondered what it would be like to see her with another man? A simple comment, not even asking her to do it necessarily, just telling her it's crossed your mind. Do you think she'll leave you? If so, your marriage is too fragile for this. If you're not worried she'll leave you, what ARE you worried about? That admitting this fantasy of yours will be embarrassing? Guess what, there are some humiliating feelings to deal with when you're being cuckolded. If talking to her seems like too much self-consciousness to bear, how do you imagine you'll handle the real thing?
You say you want advice. How many times have you gotten advice, not just from me, but others who basically tell you the same thing? And how many of the ideas we've all given you have you tried? None? Then what are you doing back here and not TALKING TO YOUR WIFE?
I am 100% confident that any professional advice columnist would tell you the same thing. You need to tell her about your fantasy it give up on it. If that advice is too hard to take, might I suggest marriage counseling instead of porn forums?
Lastly, if you plan to keep posting about the same thing over and over again, any not simply drop a new comment on your existing threads and at least continue some dialog? Maybe keep the conversation moving instead of starting over again, when you've already gotten many responses? Are you going to thank me for my blunt input, make some excuse about wishing she'd psychically divine your desires and run with them as if they were her idea, ignore any and all advice you get here, and post another identical thread next weekend?