One day a man was talking to his aunt and tells her she needs a job so she goes out and looks for one the next day.
She calls up her nephew and tells him the news. He asks, “Where did you find a job at?”
She replies, “At a sperm bank.”
He says to his aunt, “Well what do you do there?”
She says, “I greet and say goodbye to the men.”
He says, “Well what do you say when they enter?”
She says, “Hello, please wait over here.”
He continues, “What do you say when they leave?”
She replies with honesty, “Thanks for cumming.”
Q. How do you cancel an appointment at the sperm bank?
A. Ring them up and say you can't come
Boy: Dad, why is sperm donation more expensive than blood donation?
Dad: Because its handmade.