Co-Stars Thought Ashton, Mila Hated Each Other

If you thought it was just so cute when Ashton Kutcher and Mila Kunis got together, years after presumably harboring secret crushes on one another while filming That '70s Show ... think again. According to Radar's sources, their former co-stars say the two "despised each other" on set. "Everyone shakes their head over the romance," says one longtime friend of the couple. "Ashton and Mila were absolutely not friends ... In fact, they couldn’t stand working together."

But after Kutcher and Demi Moore broke up, Kunis "came forward to bury the hatchet," and "they built a solid friendship, which was a new thing for both of them," the source says. Now, of course, the pair is engaged—and People reports that Kutcher got the official blessing from Kunis' dad before popping the question. "He talked with Mila's dad around Christmastime," says a source. "He asked for Mark's blessing to marry her. It was important to Ashton to be respectful and traditional. This is the real thing for him and he wants to do it all right." (More Ashton Kutcher stories.)