White men are conditioned, by prim and proper rules of society, to lose their virginity later in life than other races.
So white men have to play catchup in developing their seduction skills, and often find their first fuck is with a girl who has already lost her virginity before they came along.
Young women get very turned on by the seduction confidence of non-white men who are more willing to live by their primal urges, rather than be controlled by "rules" they don't feel should relate to them.