The bus rumbles on, oblivious to the taboo passion unfolding. The old man's hands tangle in her blonde locks, guiding her head as she bobs, her inexpert enthusiasm making up for her lack of skill. Her tongue dances along his veiny shaft, tracing the ridges and curves, learning the taste of him. He grows harder, his groans echoing in her ears, driving her on until he can't hold back any longer, exploding into her mouth with a force that surprises them both.