Onerb, a nerdy young man with a small dick, watches his girlfriend transform into his pet, humiliating him with her sexual prowess. She teases him mercilessly, rubbing her fat ass and perfect tits in his face before pushing him down and sitting on his face, smothering him with her pussy. She laughs at his tiny cock, calling him a loser and a cuckold, making him lick her feet and beg for her approval. She finally allows him to fuck her, but only after he's proven his worth as her pet, leaving him spent and humiliated.