The pink head of black men is truly imponderable. No medical answer. The skin docs have a vague answer (not having to do with white ladies). Prolly something to do with the powerful blood supply to the head at erection, yet the sucker is pink when flaccid. I am going to apply for a grant from Obama to research this and develop a definitive answer for all us LPSG community. I have had two lady co-workers verify the pink color, one gal white the other Phillipino. Circ or uncirc still the same pink.