Not there but on the way!!!
 

Many threads on here question "how to switch the wife into a BBC lover". I'm not there yet but I'm working on it. My method has been a combination of interracial porn(specifically Janet Mason)<<she loves Janet because she is not a fake, creams heavily(just like my wife), and is obviously into BIG dicks! Then I added larger and larger toys(including black toys), and finally I have added stories that I write to her in which she is the center of attention with one or more well hung BBC. At first she did not like the movies but as time has moved forward she now asks to see them. She gets wet as hell watching Mr. BIG take Janet!!! I then shifted to first watching the movies then blindfolding her and teasing her with massive black dildos. She now creams all over them and has even started squirting almost every time that we use them. A twist on this is to have her suck on a large toy while I fuck her sopping wet pussy. Then I use the toy that she has prepared to get her off multiple times. Finally I am weakening her resolve by adding very HOT stories in which she is taken by BBC. She is the main character. At first she was shocked to read her own name in my stories but now she gets soaked by the lusty words. One week ago she took the step of telling me that she now has the fantasy of being with 2 well endowed white guys. This is a big step because before none of the above was even in her vocabulary/thoughts/actions. We will see where this goes.

Yum...sounds like you are pushing all the right buttons to turn your passionate but hesitant wife on to the black pleasuring you know she needs and deserves. Her reluctance is normal, but keep the pressure on with more spicy encouragements. It's important that she knows you are very supportive of her going black..and would not let her introduction to black lower your opinion of her, or negatively impact your marriage. Once she realizes she has a green light it should allay her natural concerns about cheating...really it's not cheating if a wife has her husband's full approval to stray.

Why not take her to some public entertainment venue where cultured black gentlemen frequent ? An IR dance club is a nice setting to charge her IR batteries.

Or perhaps you have black associates at work who you might invite to dinner some time. Start off casual and let the natural urges all white wives secretly have for black pleasuring work its magic. Encourage your black house guest to be "friendly" to your wife...that it's fine if they flirt with each other. Once he gets the message, his own natural seductive prowess will take over and it's just a matter of time before she yields.

But the important thing is to keep trying. If one approach doesn't pan out...go with another.