Ashton Kutcher brought Mila Kunis to the wrap party of his new film Jobs last night.
This was the first official outing for the couple who have been careful to keep their romance under wraps.
A source told website Hollyscoop: "They stayed within five feet of each other the whole entire evening. It was very obvious to everyone that they were together.
"They both seemed in good spirits, happy and having fun. They just sat next to each other and mainly talked to each other the whole time they were there."
The source added that Kutcher and Kunis "were really cute together” and behaved in a “casually affectionate” manner.
The pair stayed at the party, which took place at The Duplex on Third Restaurant in Los Angeles, for two hours.
34-year-old Kutcher and 28-year-old Kunis have been friends since working on That 70s Show together from 1998 to 2006.