is it possible to give a black person a hickey, if so what happens when you do?
Of course it is just maybe not as noticable as on a white person. A hickey is broken bloodvessels close to the surface of the skin. Of course caused by ꜱᴜcκing on it. Really tacky looking in my opinion. But, nontheless, any color skin can be marked with one.
Hickeys on black people