In the grimy back alley, the naive teen's eyes gleam with greed as she counts the crisp bills, her pussy already throbbing with unspeakable desires. She unceremoniously drops to her knees, her hands trembling as she releases the stranger's cock from his pants. It's bigger than she expected, the tip already glistening with pre-cum. She tentatively licks it, her tongue darting out like a nervous butterfly. He groans, encouraging her, and she takes more of him into her mouth, her lips stretching wide to accommodate his thickness. She gags at first, her eyes watering, but she persists, her head moving faster, her hand working the base of his cock in tandem with her mouth. He curses, his hands fisting her hair, and she can feel him pulsing in her mouth, his hot cum coating her tongue. She swallows it all, her throat working, and looks up at him, her eyes filled with a mix of pride and shame.