People still profess confusion about which ad man had his way with JC Penney's image, making an unauthorized teen sex ad and submitting it to the Cannes Lions International Advertising Festival. Neither the pissed-off retailer nor its apologetic ad agency would name names, and Ad Age yesterday concluded, "Just who is responsible for creation of the ad... is a bit cloudy." But it's not, really. Is it? It's got to be Mike Long, of Epoch Films. Read why, and watch one of Long's other "fake" Penney ads, this one a bit terrifying, after the jump.