The socialite and her boyfriend River Viiperi reportedly stepped outside during the ceremony on 09.01.13, but security at the Nokia Theater in Los Angeles wouldn`t let them back inside building. An onlooker told the New York Daily News newspaper: "It was super-cold outside and she didn`t have a coat. She was wearing a short dress, she was on the phone going back and forth outside." The observer claimed the couple tried to get back in through different entrances - but had no success. Paris and River`s night had reportedly got off to a bad start because they arrived late and, because the ceremony was already underwear, were ushered to "cheap" seats towards the back of the room, rather than a prime spot with other celebrity guests. The source added: "She was so embarrassed." A spokesperson for the 31-year-old heiress insisted the star had no intention of going back inside but was trying to locate her car service. And the couple didn`t appear to have let the mishaps get me down. Paris tweeted: "Fun night with @RiverViiperi at The People`s Choice Awards." River added: "So Much fun at the #PeoplesChoice awards with my beautiful love @ParisHilton on my way back home now to Relax :) "I won having the hottest and best girlfriend but they didn`t have that category this year (sic)"