Like I said in the Respectful Politics thread, you see that in my town all the time: black guy going around with a white girl (99% of the time a blonde white girl), and more often than not, they have brown-skinned kids with "kinky" hair.
Interesting thing though is the black guys don't seem to be too picky about the white girls they hook up (well, again, except that 99% of the time they're blonde), because I've seen the white girls range from looking like smokin', eye-candy, SoCal-esque babes to overweight, tattooed, grubby-teethed trailer trash.