Goddess Sonya makes Slavegirl G ride Barbara's face for training purposes, but the girls are so hot and horny, they try to outsmart the Mistress so they can enjoy each other and come. Of course, Mistress doesn't fall for their antics and makes the girls pace themselves to make the lesson last as long as she wants it to. Slavegirl G is forbidden to come and Barbara is not allowed to use her tongue to lick her pussy.