How cheeky, Miley!

Newly-engaged Miley Cyrus flaunted much more than her stunning Neil Lane engagement ring from Liam Hemsworth during a Wednesday shopping trip in Los Angeles. Browsing the racks at an American Apparel store, the former Disney darling bared her butt cheeks in way-too-short white cutoff denim shorts.

Covering up in a red and black long-sleeve blouse worn over a white crop top, Cyrus accessorized her barely-there look with black boots.

Accepting Hunger Games star Hemsworth's proposal in May, the 19-year-old singer-actress is adjusting well to her status as a bride-to-be.

PHOTOS: Miley Cyrus' short shorts

"I love being a 'fiancee,'" the future Mrs. Hemsworth tweeted Wednesday, dropping hints about her upcoming wedding. "@BigBlack is hookin me upppp. singin @ my wedding for a reasonable $$$ AND putting a fantasy factory in my backyard!" she tweeted of performer pal Christopher Boykin. "Dreams DO come true ;)"

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Cyrus met her Australian fiance, 22, on the set of 2009's The Last Song and have been together -- save for a brief 2010 split -- ever since. This will be the first marriage for both stars.

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"She's very mature! She's 19 going on 40, so she is ready for [marriage]," an insider tells Us Weekly. "Liam likes her wild side, but Miley's also mature and supportive. They're both ready for this."

This article originally appeared on Miley Cyrus Flashes Booty in Way-Too-Short Shorts