A cuckold's training begins as his mistress commands him to watch her take another man. Her body writhing in pleasure, she grinds onto her lover's cock, her eyes locked onto her husband's. "Watch, slave," she hisses, "watch as I fuck him, as he fills me with his cock." The husband can only obey, his own desires warring with his humiliation, as he watches his wife's body stretch to accommodate her lover's size, their passion a cruel lesson in his place in their new dynamic.