Are they or aren't they?

Mila Kunis has been spending a lot of time with her "friend" Ashton Kutcher recently, from chilling out at his Hollywood Hills pad to cruising around on the back of his motorcycle, but the brunette beauty isn't spilling the beans on the nature of her relationship with the Jobs star!

We caught up with the Black Swan actress as she headed to Soho House to celebrate Father's Day with her dad, and when we asked if she was dating Ashton, in typical celebrity fashion, she chose to stay mum on the subject. We wonder why?!

If she wasn't dating Demi Moore's ex, don't you think she would want to clear up the rumors... just sayin'!