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Exclusive, Hilary Duff, Bikini

AKM-GSI

Hilary Duff is one hot mama!

The former Disney darling was spotted on vacation with her 3-year-old son, Luca Comrie, in Hawaii with a few of her closest friends in tow as well.

The adorable mother and son were spotted playing in the ocean together and even building sand castles during their Labor Day holiday weekend getaway.

And it wasn't all sun and fun for the blond actress—Duff also took plenty of time during her beach outing to show off her killer figure.

Exclusive, Hilary Duff, Bikini, Luca

AKM-GSI; Parental consent was given for this image

Dressed in a barely there print bikini, and keeping her face shielded with a floppy hat and trendy sunglasses, the 27-year-old flaunted all of the hard work she's been putting in lately at the gym.

Between the washboard abs, toned gams, muscular arms and um, dare we forget to mention her booty, Ms. Duff's end-of-summer body was on display in the best way.

Exclusive, Hilary Duff, Bikini

AKM-GSI

Earlier this Spring, Duff opened up about learning to accept her figure and steering clear of the quest for perfection.

Exclusive, Hilary Duff, Bikini

AKM-GSI

"I'm the worst dieter ever so I don't have the best body, but I'm proud of my body and I'm, like, accepting of what it is," Duff told E! News exclusively at the red carpet premiere of her new show Younger.

Exclusive, Hilary Duff, Bikini

AKM-GSI

"I'm not ever going to be 110 pounds again, so working with what you got and just trying to feel strong and powerful I think is a good motto for a mom who's 27."

We do, too!