People reports: With Kutcher, 34, wearing a baseball hat and Kunis, 29, dressed casually in sweats, the famous pair could easily be mistaken for lovestruck tourists visiting the park.
“They held hands and were very affectionate,” an onlooker tells PEOPLE. “They seemed to enjoy exploring the city together. They looked very relaxed and seemed very happy together.”
The relationship comes 14 years after Kutcher and Kunis first met filming That ’70s Show.
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