A man walks into a bar, sits down and orders a triple martini. 

The bartender says "What a coincidence, The only other person at the
bar is that beautiful woman at the other end. She is also drinking
triple martinis".

After a few sips of his drink, the man walks up to the woman and says,
"Isn't it a coincidence that we are both having the same drink". 

She replies "Yes! I am here because I am celebrating. After 20
years of trying I am finally pregnant!" 

"What a coincidence" the man replied. "I am also celebrating.
After years of experimenting, I have invented a multicolored chicken." 

At this, the woman asked "How did you ever accomplish that!?". 

"I had to try a lot of different cocks" he said. 

The woman replied "What a coincidence!!!!"