A man and a woman meet in a hospital donation clinic.
The man says to the woman, "What are you here to give?"
She says, "I'm here to give blood. I get paid $5."
The man says, "Oh, I'm here to donate sperm, I get paid $25!" A couple of weeks later they meet again in the clinic.
The man says, "Hi there! Are you here to give blood again?"
The woman puffs her cheeks out and shakes her head.