At the movie theater a man noticed a young woman sitting all by herself.
He was excited to see she had both hands under her skirt and was fingering herself furiously.
He moved to the next seat to her and offered his help.
She agreed, and the man started fingering her like crazy.
When he tired and withdrew his hand, he was surprised to see her go back to work on herself with both hands.
"Wasn't I good enough?" he asked sheepishly.
"You were great," she said, "but these crabs are still itching!"