A guy walks into a bar and asks for 13 margaritas. The bartender abruptly replies, "Wow sir, that sure is a lot, whats the occasion?"
So the guy sits down on a stool, hangs his head and tells the curious bartender, "Well, my first blow job." The bartender smiles and replies, "Yea, that's a splendid occasion indeed. Let me get you one more drink, on the house!"
"Nah," the guy replies... "If thirteen doesn't get the taste out, nothing will."