I caught my step sister jerking off, I lick my balls and cum all over her face.

In an intimate moment of solitude, the protagonist watches his step-sister through a slightly ajar door. A wave of lust overtakes him as he begins to jerk off, his gaze fixated on her innocence. He savors the taboo thrill, even as his movements grow bolder. Suddenly, she enters, catching him in the act. Rather than fleeing, she stands frozen, her curiosity piqued. He quickly licks his balls, a shock to her wide-eyed gaze, before he finishes, spraying his cum across her surprised face. She doesn’t resist, but stands there, her expression a mix of astonishment and burgeoning desire.