Still estranged from her mother Demi Moore, Rumer Willis partied in Cancun, Mexico Sunday with Wilmer Valderrama at the brand-new Hard Rock Hotel, and we've got all the exclusive photos for you right here on RadarOnline.com.
A bikini-clad Rumer, 24, enjoyed shots of champagne, while TV hunk Wilmer took shots of Tequila. She tweeted phrases such as "Coco Bongo Madness" and "Cancun what can u do?" and from the vacation hotspot.
"Since breaking up with Ashton, Demi has been a mess," an insider told us. "The girls were there for her through it all -- the split and the rehab but now they just feel like they need a little distance.
"Demi is just being very needy right now and the girls are tired of it, they want a mother not another little sister. They are all concerned that she is going to relapse and head back to rehab and they can't deal with the stress and worry of it."
In an interesting twist, Wilmer co-starred with Ashton, and Ashton's current love, Mila Kunis, on That '70s Show.
Rumer was previously romantically linked to actor Jayson Blair; Wilmer is one of Hollywood's most well-traveled Romeos, having hooked up with beauties such as Minka Kelly, Demi Lovato, Ashlee Simpson and Lindsay Lohan.