A guy walks into a bar with a frog. He sits next to this real attractive lady, places the frog up on the counter, and orders a drink.  The lady says "that's a disgusting looking frog you got there." The guys says, "Yeah well, let tell you something... this here frog is THE BEST damn pussy eater you ever seen."

The lady is outrages and says so, then promptly gets up and moves across the bar.  A few hours pass....  The lady has had more then her share, and starts thinking about the frog...
So she staggers back up to the guy and says, "OK prove it!".  They run get a hotel room.. the lady gets nude and is lying on the bed with legs spread open wide. The guy takes the frog and puts it in position, then commands, "go homer!".... But the frog does nothing.  He commands again... "GO HOMER" but the frog still does nothing.... he picks up the frog and tosses into the corner and says, "If I've shown you once, I've shown you 100 times .. now watch how its done!"