In the dimly lit room, Hayley's large, perky breasts heave with anticipation as she kneels before Ethan, her eyes fixed on his immense, throbbing cock. Ethan, his voice a low growl, commands Hayley to 'Eat my cum, step-sis.' She obliges, her tongue tracing the length of his shaft, her lips stretching wide to accommodate his girth. Ethan's hands tangle in her hair, guiding her head, as he fucks her mouth, his hips bucking rhythmically. Hayley's moans vibrate around his cock, driving Ethan closer to the edge, ready to fill her hungry mouth with his hot, salty cum.