Pablocabezamantecada, lost in his taboo fantasies, strokes his throbbing cock, envisioning his sister's lithe body and imagining her tight pussy wrapped around his massive dick. He masturbates furiously, his pre-cum dripping onto his pounding hand, until he can't hold back any longer. With a guttural groan, he unleashes a torrent of cum, his cock pulsing as he coats his hand and stomach with his warm, thick load.