Mila Kunis is set to guest star alongside Ashton Kutcher in an upcoming episode of "Two and a Half Men," CBS announced on Tuesday.

Kunis will play Vivian, a "young, beautiful, free-spirited world traveler" who shows up on the doorstep of Walden, the character played by Kutcher. Walden feels an instant connection with her, convinced she's "the one." The problem is, Walden was about to propose to someone else.

Yes, it's a case of art imitating real life -- that is, if you want to call "Two and a Half Men" art. Last week, it was reported that Kunis and Kutcher, who met in 1998 on the set of Fox comedy "That '70s Show," got engaged. The couple have been dating for nearly two years.

epa04110231 US actor Ashton Kutcher (L) and his fiancee US actress Mila Kunis (C) attend the Los Angeles Lakers versus New Orleans Pelicans NBA game at the
epa04110231 US actor Ashton Kutcher (L) and his fiancee US actress Mila Kunis (C) attend the Los Angeles Lakers versus New Orleans Pelicans NBA game at the Staples Center in Los Angeles, California, USA, 04 March 2014. EPA/MICHAEL NELSON (MICHAEL NELSON)

The guest appearance by Kunis will mark the duo's first appearance together on a scripted program since "That '70s Show" ended in 2006.

No airdate for the episode was announced.

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