Mila Kunis will join Ashton Kutcher on Two and a Half Men in a guest-starring role this season, PEOPLE confirms, as seen in these exclusive images.
The pair, who first met on the set of another TV hit, That 70s Show, in 1998, will once again share the small screen in an episode that has already taped.
Kutcher, 36, and Kunis, 30, got engaged earlier this year after dating since April 2012, and a source has confirmed to PEOPLE that the acting duo are expecting their first child.
"They are both very, very happy. It's still early," the source says. The friend of the couple adds that rumors of twins are false.
Sonja Flemming / CBS
The couple has not revealed a wedding date, and a source says they aren't in a rush to walk down the aisle.
"It won't necessarily be a short engagement," the friend says. "They haven't begun planning the wedding yet."