Her tongue flicks out, tasting the pre-cum beading at the tip, her eyes rolling back in ecstasy. She's a cumdumpster in training, eager to please, to be used. She sucks, her cheeks hollowing, her hands cupping his heavy balls, massaging them gently. She can feel him getting close, his cock throbbing, his breathing ragged. She pulls off, gasping, 'Cum for me, daddy. I want to taste you, to swallow every drop.' She takes him back in, her head bobbing faster, her hand pumping his shaft, and with a final groan, he explodes, filling her mouth, her throat, her world with hot, sticky cum.