One night a little Jonny walked in on his parents having sex and asked "Daddy what are you doing to Mummy?" The father then replied "Son I'm putting a little baby brother inside Mummy."
The next day the father came home from work and found little Jonny sitting on the front porch crying his eyes out. The father sat down beside him and asked "What's wrong son?"
The little boy replied "Well daddy, you know last night when you put a little baby brother in mummy? Well, the milkman came along this morning and ate him."