Two brothers enlisting in the Army were getting their physicals. During the inspection, the doctor was surprised to discover that both of them possessed incredibly long, oversized penises.
" How do you account for this?" he asked the brothers.
" It's hereditary, sir," the older one replied.
" I see," said the doctor, writing in his file. "Your father's the reason for your elongated penises?"
" No sir, our mother."
" Your mother? You idiot, women don't have penises!"
" I know, sir," replied the recruit, "But she only had one arm, and when it came to getting us out of the bathtub, she had to manage as best she could."