On Thursday, Ashton and Mila will reunite on screen when Mila guest stars on Two and a Half Men. The actress will play Vivian, a woman who shows up on Walden's doorstep, and they'll be giving a not-so-subtle nod to their real-life relationship on the show. "I bet you only date hot actresses," Vivian says, to which Walden replies, "God, no. I'd never date an actress. They're all crazy."