On Monday, the couple of about six months had a romantic lunch date at Bistro Chat Noir after a hang out in Central Park. As Kutcher, 34, paid for the bill, he said "I love you" to his former That 70s Show costar, 29, Saysan observer.

Kutcher (who split from wife Demi Moore in November 2011) and Kunis (she and longtime love Macaulay Culkin broke up in late 2010)