A man is walking home late at night, when he sees a woman hiding in the shadows. 
"Twenty Bucks", she says.
He's never been with a prostitute before and he excitedly says, "What the hell, sure!"
They're going at it for a minute, when suddenly a light flashes on them. An officer says, "What are you people doing?"
Quickly the man replies, "I'm making love to my wife!"
"Oh, I'm sorry", replies the officer, "I didn't know".
"Well, to tell the truth, neither did I until you flashed that light on her face."
"Twenty Bucks", she says.He's never been with a prostitute before and he excitedly says, "What the hell, sure!"
They're going at it for a minute, when suddenly a light flashes on them. An officer says, "What are you people doing?"
Quickly the man replies, "I'm making love to my wife!"
"Oh, I'm sorry", replies the officer, "I didn't know".
"Well, to tell the truth, neither did I until you flashed that light on her face."