My wife Amelia has been fucking black guys exclusively now for the last 8 months of our 3 year cuckold relationship. I asked her why, and apart from the obvious answer re much larger cocks, she says there is much more to it..... Amelia says that it is an entirely different experience to fucking white men. It is much more physical and controlling. Black guys treat her roughly, slapping her and pulling her hair as they fuck her hard. There is more verbal exchange, the black guys reminding her what a slut she is. All of this works her into an intense frenzy, resulting in explosive climaxes. (and I have witnessed these in a big way!!) I have to agree with her.