Sister's Refusal: Water or Cock?

Yesterday's plan was a casual stroll downtown, but Ube had other ideas. His sister, thirsty from the heat, asked for water, but Ube's thick cock had another thirst in mind. He refused to budge, his massive erection tenting his shorts. She laughed it off, but her eyes lingered on his bulge. Later, alone in their room, she found herself yearning for that forbidden drink, her pussy aching with desire.

• Unknown