complexion was seen no differently than hair color or eyes color, the word niger was only used to describe someone and never him as a person, someone from nubia
various scenes with well-built sporty guys in their early 20s being slapped around & roughly treated;in one,the condom was a turn off.There is also Nubia
They do it because they would've done it in Ancient Sumeria, Ancient Egypt, Ancient Greece, Ancient Nubia, Ancient Persia, Ancient Babylon, Ancient China