Nerd at beach

A textbook nerd is at the beach one day, baring his chest and showing off his pale, shrunken chest, and of course all the girls are laughing at him and drooling over the weight-lifting hunks. So in desperation the kid goes to the lifeguard and asks, "How can I do something to get these girls interested in me? What can I do to show off?"The lifeguard takes pity on this poor guy, with his puny muscles and baggy trunks and lanky hair, and finally he says, "Tell you what - why don�t you take a potato and stick it down your swim trunks. That way the girls will think you�ve got something really big and hard down there, and they�ll want you."So the nerd decides to give it a try. He struts around the beach with a potato in his shorts, and all the girls give him weird, disgusting looks and tell him to get the hell out of there. The nerd can�t understand what�s going on, so he goes back to the lifeguard and asks, "What am I doing wrong? You said they�d like me if I put a potato in my shorts!"Without even batting an eye, the lifeguard says, "You gotta put the potato in the FRONT, kid!"