Sure, I think they will all want to help.
Your wife always gets turned on when a strong, masculine, confident man flirts with her -- which happens A LOT (even when you're with her). Sadly for you, she does not get turned on by weak betas.
You and your wife and your best friend have been talking about this evening for months. It all started with some seemingly innocent joking and banter by him about how much he'd love to spend a night with you wife -- but what started as joking around has now become the real thing and it is hard to say who is most eager for their desires for each other and for your cuckold desires to be consummated.