Barron Hilton is a protective younger brother. The 18- year-old sibling of Paris Hilton was at West Hollywood hot spot Voyeur on Saturday when he spotted Nicholas Prugo, the ringleader of the so-called “Burglar Bunch,” accused of stealing jewelry and designer duds from Paris, Lindsay Lohan, Orlando Bloom and Rachel Bilson, among others. “Barron asked the security guard to ask [Nicholas] his name,” a source tells Paper mag. When the guard confirmed it was Prugo, Barron told him, “Get him the [bleep] out of here,” and had him tossed. Prugo is set to be arraigned on Dec 2.