LONG dogged by gay rumors, insiders suspect John Travolta is inspired by his close pal, sex-swapper Caitlyn Jenner, to become a woman. And it looks like the Pulp Fiction hunk has already started the transformation! The 63-year-old star was sporting boobs — a sign he’s getting shot full of feminine hormones — on the set of Gotti, in which he plays late mob boss John Gotti. -Olympic decathlon champ Bruce Jenner also displayed man boobs shortly before he shocked the world with his transformation into the woman known as Caitlyn. Many things have been said about John Travolta, but GLOBE has the photographic proof! Get this week's GLOBE at your local newsstand, Wal-Mart, or supermarket.