<p>DEMI Moore is accustomed to the attentions of men - but not an over-sexed porpoise. Moore, her beau Ashton Kutcher, ex-hubby Bruce Willis and kids Talluleh, Scout and Rumer were all in Las Vegas to catch the Duran Duran show at the Hard Rock Hotel's venue, the Joint. Sunday morning, the crew went to see Siegfried & Roy's Secret Garden & Dolphin Habitat, and took a swim with the flippery mammals. "Dolphins are very sexually aggressive, and one went after Demi in a big way," laughed our spy. Moore had to get out of the pool.</p>