Performed by adults in an uncle-niece role-play. His adult niece suddenly arrives at his filthy studio apartment and starts cleaning it. Every movement gives him glimpses of her braless nipples, panties, and shapely ass, leaving him fully erect despite knowing how inappropriate it is. When she notices the bulge, she becomes intensely curious and moves close, telling him she would be willing if it is with her uncle. He tries to restrain himself because she is his niece, but her teasing sexuality proves too tempting, and in the end he cannot hold back.