What the hell do you mean? A real Bride and Groom? I suppose you could use a tux skin on the SAS skin in mp. Grab a female model for the axis from city nights final or somewhere and make her into the slut with the white dress. But the white dress I dunno (shes prob a slut anyway)
Acually the groom would be pretty simple, and for the bride all you would have to do is get a manin face, edit to how ever you want, get one of those axis trench coats and turn it white and there you go, a bride and groom. But I dont have time to do that.