Little Johnny heard a noise coming from his parents bedroom one night, so he ran in to see what was going on. Naturally he caught his parents in the act. Happily he yelled "Oh boy, a horsey ride!" and hopped on his fathers back. Johnny's dad, relieved that the kid wasn't asking any embarrasing questions, kept going at it and never missed a beat. After a few minutes, Johhny's mother started moaning and groaning and throwing her arms this way and that way.....
'Hold on tight Daddy", little Johnny exclaimed excitedly, "this is the part when me and the milkman always get bucked off!!"