The actor, 41, shared a sweet snap of himself and the actress, 36, as they beamed for the camera with the caption: "Magical weekend @disneyland, An imagination tinderbox. That Walt guy had a vision."
The Instagram post comes after his ex Demi Moore, 56, made bombshell revelations about her relationship with Kutcher in her new memoir "Inside Out" released last week, including cheating and threesome allegations.
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In the photograph, Kutcher and Kunis wore baseball caps as they posed in front of Sleeping Beauty Castle. Not pictured, however, was daughter Wyatt, 4, and son Dimitri, 2.
On Tuesday, the launch day of the book, Kutcher seemed to bite his tongue in response to the allegations when he shared a vague tweet about valuing his family.
'I was about to push the button on a really snarky tweet. Then I saw my son, daughter, and wife and I deleted it," he posted followed by a heart emoji.
Kutcher followed up with two additional tweets. "Life is good - Larry Kutcher," he first wrote, a reference to his father. He then encouraged fans to text him for "the truth", adding his Community app phone number.
His cryptic posts come after Moore claimed Kutcher engaged in affairs before they divorced in 2013, after eight years of marriage. She also said that she agreed to threesomes so as to "try to fit the mold of the woman he wanted his wife to be." "I put him first," Moore stated in the book. "So when he expressed his fantasy of bringing a third person into our bed, I didn't say no. I wanted to show him how great and fun I could be." But the plan backfired. "I was strangely flooded with shame, I couldn't shake the feeling that this whole thing was somehow my fault."
The threesomes contributed to their split, according to the "G.I. Jane" actress, but it was ultimately his alleged affairs that ended the relationship. "Because we had brought in a third party into our relationship, Ashton said, that blurred the lines and, to some extent, justified what he's done," she claimed her then-husband told her after a first woman claimed to have slept with Kutcher in 2010.
Moore also claimed she started drinking again during their relationship, having been sober for almost 20 years. "When I went too far, though, [Ashton] let me know how he felt by showing a picture he'd taken of me resting my head on the toilet the night before," she wrote. "It seemed like a good-natured joke at the time. But it was really just shaming."
Before her marriage to Kutcher, Moore was married to Bruce Willis from 1987 to 2000. The couple share daughters Rumer, 31, Scout, 28, and Tallulah, 25. She was also married to musician Freddy Moore from 1980 to 1985.
The "The Ranch" star shares daughter Wyatt, 4, and son Dimitri, 2, with wife Kunis, who he met on the set of "That '70s Show" in 1998.