The teenage couple, who were very private about their relationship when they were first romantically linked earlier this year, were more tactile than normal as Gomez interviewed her boyfriend at the MTV Video Music Awards pre-show last night.
Gomez questioned Bieber on his outfit as he first arrived at the event, laughing when he said that his accessory of choice was a pet snake named Johnson.
She then said: "You're up for 'Best Male Video'. I want to know - you're up against Eminem and Bruno Mars, do you feel a little nervous at all?"
Bieber responded: "You know, I'm just excited to be in the category with such amazing people. I'm just happy to be here."
Gomez continued: "Rumoured to be performing is Jay-Z and Kanye [West], and I know you like them both. Are you excited to see them perform?"
Bieber replied: "Very excited. I heard that it was kind of a last minute thing, but I'm really excited."
As Gomez said goodbye to her boyfriend, he leaned over and gave her a kiss, to which she responded by saying: "Thank you for hanging out, babe."
As Bieber accepted the prize for 'Best Male Video' at the awards ceremony, he hugged Gomez on stage.
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Watch Selena Gomez interviewing Justin Bieber at the MTV VMAs below: