The mistress' command is clear: "Suck." The slave, bound and at her mercy, opens his mouth wide. She spits on his tongue, then forces her slick, juicy cunt onto his face. He devours her, his tongue exploring every fold, every crevice. His own cock throbs, trapped and denied release. She rides him, her hips bucking, her clit grinding against his nose. He can barely breathe, but he doesn't care. This is his purpose, his pleasure.