LFWM (Latin Female White Male), LWWM, LW/WM, and Latin woman with white man refers in porn to a Latin woman who has sex with a white man.
There is also AFBF, AFBM, AFLF, AFLM, AFWF, AFWM, AMBF, AMLF, AMWF, BFLF, BFLM, BFWF, BFWM, BMLF, BMWF, LFWF, and LMWF, among others.