Yikes! Rumer Willis admits she once had a crush on former stepdad Ashton Kutcher

Ah, the dangers of having a hot ageless celebrity mum with a thing for younger guys. She just might end up with one of your teen-idol crushes!

That's exactly what happened to Rumer Willis when her mother Demi Moore, 52, started dating Ashton Kutcher, 37. The 27-year-old Dancing With the Stars contestant relived the hysterically uncomfortable episode during an interview with Howard Stern.

"It was definitely weird for a minute, " Rumer said of meeting her future stepfather for the first time.

We bet it was! Check out the interview above to hear just how weird it got.

Rumer was just 15 years old when Demi started dating Ashton in 2003, so he probably only saw her as a little kid back then. But she's been stunning as an all-grown-up frontrunner on DWTS. Check out this Demi-esque turn in the clip below.