You may have done that kid the biggest favor anyone ever has! You weren't rude, just told the truth. No one will want to see his cock if he's a Land-Whale and obviously no one at home is telling the sad reality of life. You don't get participation awards in real life and hotties aren't chasing the fat guys or girls. He's at just the right age, puberty and all, where what you said may actually have a positive effect on him and make him think before he picks up the next twinkie! Good for you, BRAVO!