September 12, 2017 09:13 AM

It’s been more than a decade since That ’70s Show ended, but the iconic sitcom’s memory lives on in the Kutcher-Kunis household.

On Monday, Ashton Kutcher shared an adorable Instagram photo of his and Mila Kunis9-month-old son, Dimitri Portwood, wearing a vintage t-shirt of Michael Kelso and Jackie Burkhart from the beloved sitcom.

“Yes, this Is my son’s outfit today. #that70sshow #kelsoandjackieforever,” Kutcher, 39, captioned the photo.

Kutcher and 34-year-old Kunis famously played on again, off again lovebirds Kelso and Jackie in the comedy.

In real life, Kutcher and Kunis began dating in 2012 and wed in July 2015. Along with Dimitri, the stars are parents to 2-year-old Wyatt Isabelle.

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Thanks to their days on the show, Kunis and Kutcher have long had a romantic connection. Kunis even revealed to PEOPLE in 2001 that Kutcher was her first kiss.

EPA/Tibor Illyes

“I was like, ‘Oh, he’s so cute, it’s the Calvin Klein model!’ ” Kunis told PEOPLE. “Then I was like, ‘I have to kiss him?’ I was so nervous and uncomfortable. I had the biggest crush on him.”

Kutcher was surprised by the news, telling PEOPLE then, “I’m so glad I didn’t know that or it would’ve been too much pressure.”

“I was so nervous. She acted so cool. She seemed as if she’d done it a thousand times,” he said. “I was the one with the butterflies in my stomach. I mean, here’s this little girl and I have to kiss her. It was nerve-racking.”

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Their time on the show birthed a deep friendship between the two, but things changed for the stars when they ran into each other years later at an award show — shortly after Kutcher split from Demi Moore.

“I see this guy and I see his back and he’s really tall,” Kunis said last year on The Howard Stern Show.

“Then he just turns around and it was literally like if we were in a movie, the music would start playing and the violins would go. I think for the first time ever he took my breath away – I was like f—, he’s good-looking.”

Mila Kunis and Ashton Kutcher Bought Their Wedding Rings on Etsy for Under $100

After catching up with each other, Kunis said the actor invited her to his housewarming party. And though it was later discovered that Kutcher had intended to set Kunis up with one of his friends, the sparks between the pair were undeniable.

“Long story short, I didn’t leave until the next morning,” she revealed. “[It was the] first time I ever slept over while I was single.”

They welcomed little Wyatt in October 2014, and Kunis revealed that she and Kutcher never expected to tie the knot.

“We started dating with the idea we were both never going to get married,” she said. “A year later we were like, ‘Tomorrow let’s [get married].’ ”

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