A mulatto toilet slut and a big-titted blonde have something in common -- a love of ass-licking. She has the ass; he has the tongue, and puts it to good use. A good cock-sucking is his reward.
He cant get enough of her ass, and she is only too happy to give him what he wants. She wiggles and jigges on his face, and he's not exactly holding still, his hand on his cock.
"Chiaroscuro" means "white on black," and this white dude is on this black chicks ass like stink on shit. Which, come to think of it, is a VERY apt simile! He can't get enough of her you won't be able to get enough of this video.