This delicious woman is Gabrielle Gucci from the Czech Republic. Joachim Kessef is feeding her his black cock in Cum Craving Cuckolds 4 from 2015, which he also directed. I don't know who the cum eating boyfriend is, but he's a lucky guy.
While this is pro and may take it to places that don't appeal to some folks, couples bringing a bigger dick into the bedroom to spice things up is hardly a new thing. it just gets more play.