Little Billy asks his dad for a telly in his room. Dad reluctantly agrees.
Next day Billy comes downstairs and asks, 'Dad, what's love juice?'
Dad looks horrified and tells Billy all about sex.
Billy just sat there with his mouth open in amazement.
Dad says, 'So what were you watching?'
Little Billy replies, "Tennis"http://www.johns-jokes.com/joke-of-the-day/2013/april.html