The onscreen couple looked like a real-life twosome as they stepped out at the Hollywood Style Awards last night.
Sophia, who was presenting an award to Max Azria, hit the carpet solo, but she stayed close to Austin inside and was overheard mentioning her "boyfriend" to partygoers.
Austin, who wasn't presenting or receiving an award, played it coy when asked about his status as her plus-one...
"To be honest, I'm here to drink the free tequila and come to the Hammer Museum because I'm an art lover," he explained of why he happened to be at the event. "I'm just here to enjoy the party!"
When asked specifically if he was Sophia's date for the night (which he was so obviously was), he wouldn't confirm or deny the hookup.
"I'm not gonna say anything except that...I'm here to drink. We were talking before, we have a bunch of friends together, we work together," he said.
Apparently the Star Trek actor thought he was above waiting. He asked a group of girls if they were in line at the bar, then proceeded to cut in front of them.
Hayden also had her own diva moment on stage when he incorrectly referred to her as a "teenager."
"I'm 20, not 19," the Heroes actress corrected her costar when accepting her award.
Other awkward moments at the event? Pam Anderson presenting an award to famed photog and friend David LaChapelle.
"Where are we?" she said when she first took the stage, before rambling on for a few minutes. During David's speech, she struck random fidgety poses and fussed with her hair as he spoke.