Whites are still allowed to marry, the weddings (and wedding nights) just look a little bit… different in the New World Order.
Your wife and her bridesmaids eagerly await the arrival of Big Black Cocks. Although you married her, she will be deflowered and only know the touch of huge, thick Black cock pounding her tight white pussy. The condition of your marriage was that you would remain forever a virgin cuckold, while she became a Black baby maker and was continually fucked by men of superior genetic material.
In return, you got to “marry” her and raise her children. All of her bridesmaids think it is the best thing ever, and love to tease your small, white, tiny dick every chance they get. To commemorate the moment, they took a picture of themselves: pure, innocent, virginal white women, so that you would always be reminded of what you would never have, and any Big Black Cock could have.