That Mila and Ashton show: Couple's airport PDA

Yahoo! TV

We're having "That '70s Show" flashbacks: Mila Kunis and Ashton Kutcher, who played a couple on the TV sitcom 14 years ago, seem to be a real-life couple now. They were spotted at the airport in Bali holding hands -- their first public display of affection -- before boarding a plane home.

The duo, snapped hand-in-hand at the Denpasar International Airport on Sunday, both dressed casually in khakis and athletic shoes, and looked relaxed and tan.

[Related: Ashton Kutcher, Mila Kunis take secret trip to Bali]

The New York Post notes that the two had been rumored to be enjoying a romantic getaway in Bali's southern peninsula at a five-star beach resort, which included "wooden four-poster beds, a sunken indoor bathtub, and ultra-private pools."

Kutcher, 34, who recently split from his wife of six years, Demi Moore, and Kunis, 28, seem to no longer worry about keeping their romance a secret.

[Related: Mila Kunis' airbrushing nightmare]

The couple, who had previously denied a relationship, were caught kissing on the balcony of a private party last month.

At a wrap party for the movie "Jobs," a source told People magazine, "they showed up as a couple and left as a couple." The source noted that the two stayed by each other's side the entire night, adding, "It looked like young love." A budding love between two people who have known each other for years.

[Related: Ashton Kutcher: I was convinced I'd be fired from 'That '70s Show']

A source told the Post, "Ashton was Mila's first kiss while on 'That '70s Show,' so they've always had a special bond. They started dating in the spring, and things have recently become more serious."

Watch a clip of Ashton and Mila as Kelso and Jackie on "That '70s Show":

Find Out More About Their Love Life: