Fertile Celebration

While the bar patron savoured a double martini, an attractive women sat down next to him. The bartender served her a glass of orange juice, and the man turned to her and said, "This is a special day. I'm celebrating."



"I'm celebrating, too," she replied, clinking glasses with him.



"What are you celebrating?" he asked.



"For years I've been trying to have a child," she answered, "Today my gynaecologist told me I'm pregnant!"



"Congratulations," the man said, lifting his glass.



"As it happens, I'm a chicken farmer, and for years all my hens were infertile. But today they're finally fertile."



"How did it happen?"



"I switched cocks."



"What a coincidence," she said, smiling.