Rumer Willis had a crush on Ashton Kutcher

Demi Moore's daughter admits ''it was definitely weird'' when the actress first started dating Ashton Kutcher.

Rumer Willis had a huge crush on the 'That 70s Show' star, who split from Demi in 2011 after six years of marriage, when she was a teenager and says it took her ''a minute'' to adjust when he started romancing her mother in 2003.

The 'Dancing With the Stars' contestant said: ''It was definitely weird for a minute but I have to commend him. He was a really great stepfather. The perspective shifted very quickly.''

Asked how quickly she removed the posters of the 37-year-old heartthrob from her bedroom walls, she told SiriusXM radio host Howard Stern: ''That's when you open up your Teen Beat and just take him down, rip out somebody else and put them up.

''I feel like I told my sister that at one point like, 'Man, gotta cross him off the list.' ''

The 26-year-old beauty insists she was secretly impressed when Demi, 50, started dating Ashton, who is 15 years her junior.

She said: ''I feel like I was kind of impressed like, 'Yeah girl, get it.' ''

Rumer, whose father is Bruce Willis, previously admitted she is still in contact with Ashton, who now has six-month-old daughter Wyatt with fiancée Mila Kunis.

She said: ''I reached out to him when he had the baby, which is so awesome. I saw photos of her [Wyatt]. She's very cute.''