AFBF (Asian Female Black Female), AWBW, AW/BW, and Asian woman with black woman refers in porn to an Asian woman who has sex with a black woman.
There is also AFBM, AFLF, AFLM, AFWF, AFWM, AMBF, AMLF, AMWF, BFLF, BFLM, BFWF, BFWM, BMLF, BMWF, LFWF, LFWM, and LMWF, among others.