A man discovers his partner engaged in erotic acts with another man

The narrator, a young man with an average physique, harbors deep insecurities, especially about his endowment. He's always been dutiful in pleasuring his partner, a stunning beauty with ample bosom, who reciprocates with fervor. However, when he stumbles upon her in the arms of another man, his world crashes.The other man, a well-endowed hunk, is eagerly indulging in her voluptuous curves, his sizable member finding its way to her inviting orbs. The betrayal sends the young man reeling, his heart heavy with hurt and humiliation. Yet, his primal instincts take over, and he finds himself drawn to the spectacle, his arousal heightening.As the other man takes over, the young man is forced to witness his partner being ravished, her moans echoing in the room. He can't tear his eyes away, his hand exploring his own desires. The scene unfolds, a testament to lust and desire, leaving the young man with a heavy heart and a throbbing member.