MyLaffs Joke #2317

  Johnny (age 8) comes into the house for dinner after playing outside all
  afternoon. His parents ask him what he did today. He says that he played
  baseball and then he proposed to Betty (age 7) the next-door neighbour. They
  are going to get married.
  
  His parents think this is cute, and they don't want to make fun of Johnny so
  they ask Johnny him "How are you and Betty going to pay for the expenses
  of being married?"
  
  He replies "Well with the $1 I get each week from you and the $1 she gets
  from her Mom and Dad, we should do O.K."
  
  His father says "That's fine, but how will you pay the extra expenses if
  you and Betty have a baby?"
  
  Johnny answers, "Well, so far, we've been lucky..."
