As a frequent visitor to Vegas and kinky kind of guy I will suggest two things that have worked for others. We just had our girlfriend's cuckold husband fly his wife out to stay with my wife and I. What do you call a male and female bull? The first thing was staying at a hotel with a topless pool. Then have your wife sit topless at the edge of the pool. There will soon be guys crowded around her and she can explain what she is looking for and find any takers. The couple we knew who did that ended up with three guys following them to their room. The other thing is to ask a cabbie, bellman or valet as you tip them well. They can usually find whatever you want or at least point you in the right direction. Also go to some Vegas sex websites. You usually can find someone there but we never had luck with internet hookups. Too many posers and phonies. There used to be a group of black guys who would have sex with your wife for free, as you watched. They were disease free and would follow any script you had in mind. Probably long gone by now but there may be others who cater to tourist with unusual tastes.