Girlfriend (linked romantically in 2012; known each other since 1998)
The former That '70s Show co-stars started spending time together just after his split from Demi Moore and her breakup with long-time beau Macaulay Culkin. Interestingly enough, Ashton was Mila's first kiss back in 1998. "I was like, 'Oh, he's so cute, it's the Calvin Klein model!'" she gushed about smooching her co-star. "Then I was like, 'I have to kiss him?' I was so nervous and uncomfortable. I had the biggest crush on him."