A submissive man, eager to please his dominant partner, falters when she derides his size. "Your cock isn't big enough to make me cum," she sneers, humiliating him further by making him clean her heels. She then brings in another man, bigger and more virile, to pleasure her while the cuckold watches, helpless and aroused. His punishment complete, he's ordered to clean up her lover's cum from her pussy, following her detailed cumeating instructions.