The boy's fist flies up and down his rigid shaft, his grip tight, his wrist sore from the relentless pace. His body tenses, his toes curl, and with a final, desperate pump, he sends a geyser of cum arcing through the air. It lands with a wet splat on his stomach, and he watches, entranced, as his seed drips down his skin, leaving a sticky trail. He uses his fingers to smear it into his skin, savoring the feel of his own cum, before licking it off, tasting his own desire.