Uncle Tompa was very good at weaving woolen fabrics for making clothes. Tibetan families often invite weavers into their homes to weave for them. Once Uncle Tompa was invited into a family where there was only a mother and daughter. The daughter was a virgin and very pretty.
Uncle had been weaving for several days. He tried to seduce the virgin girl a few times, but he could not manage it. At last he figured out a way.
While Uncle was sitting at the loom weaving in the entrance of the house, he noticed the girl walking downstairs to go to the bathroom. As soon as he saw her coming down, he sped up his weaving so that he was working very fast. When the girl saw the rush of weaving, she asked him,"Why are you in such a hurry?"

Uncle replied, "Well, I have to go to the bathroom, but I must finish this yarn before I go, that's why."
Uncle asked her, as he continued working very quickly, "Where are you going?"
She replied, "I am going to the bathroom."
"Since you are going to the bathroom, could you please carry my urine with you?"
She thought about it and answered, "Why not?" So Uncle asked her to take off her clothes and he had sex with her.
As soon as he was through, Uncle continued his weaving, and the girl went to the bathroom, thinking she was carrying Uncle's urine for him. When she returned, she went to help her mother in the kitchen. She told her the whole story about the favor she did for Uncle Tompa by carrying his urine to he bathroom.
As soon as her mother heard the impossible story of Uncle's trick, she yelled, "No! No! How can anyone send his urine through someone else? He did not send his urine, he screwed you, that's what he did to you!"
She thought. "That's right; that must be so! I must go and yell at him!"
So she went back to Uncle and shouted, "You did not give me your urine, you screwed me!"
Uncle said, "No! No! I really did send my urine with you." The argument went on for awhile, then suddenly Uncle said, "If you are that concerned about it, let me have my urine back so you don't have to be worried."
The girl thought, "It would be better if I returned his urine; I shall be clean." She said, "Yes, why don't you take it back."
So Uncle took her clothes off and had sex with her once again.