Last night, (Saturday, Jan. 18) Chateau Nightclub & Gardens at Paris Las Vegas welcomed the hottest women of Penthouse as they hosted Sin City's sexiest party with special guests 2013 Pet of the Year Nicole Aniston and her successor 2014 Pet of the Year Lexi Belle, Vanessa Veracruz, Yurizan Beltron and Abigail Mac, among others.