>>28985240There's something to this actually:
Darker skin means greater melanin & collagen content in the dermis (which is denser and contains more elastin), and greater activity in the sebaceous glands, so the skin looks and feels more "velvety" (pic related)
Lip skin is thinner and has less melanin and collagen, but of course dark skin means dark lips, so on average there is more protection for the thinner lip skin provided by greater melanin, collagen, and denser dermis elastin.
So their lips feel more "velevty" as well.
The other aspect is that black women usually have bigger lips that drag along your cock, and bahgawd it feels so good.
Think "lips that grip" but instead of the pussy it's the mouth.
Sources: my personal experience followed by googling why getting head from white girls was so different from black girls.
Outlier: best I've ever had was from a mixed girl (white mom black dad), with thick lips, caramel skin, and white hair / facial features