Jennifer Lopez, Casper Smart Hit The Vanity Fair Oscar Party (PHOTO)

PHOTO: Jennifer Lopez, Casper Smart Hit The Vanity Fair Oscar Party
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Though they've been together for months, Jennifer Lopez and Casper Smart made a rare public appearance together at Sunday night's Vanity Fair Oscar party.

Lopez, who ignited a Twitter frenzy over "a nip slip that wasn't" while presenting at the 84th annual Academy Awards, traded in her stunning Oscars gown for another daring dress for Vanity Fair's star-studded post-Oscars bash -- but she didn't show up alone.

Her backup-dancing beau, Smart, joined Lopez after the big show and the pair even posed for some photos together during Hollywood's biggest night.

But those hoping for another wardrobe malfunction will be disappointed. In fact, according to Lopez's stylist, there wasn't even a malfunction to begin with at the Oscars, for Lopez at least.

"The Oscar dress was custom made for Jennifer by designer Zuhair Murad," stylist Mariel Haenn told Entertainment Weekly. "The dress fit perfectly to her every inch. There were cups built in and there’s no chance that there were any how do you say? 'Slips.'"

Well, there you have it: no nip slip, no problem.

Check out a photo of Lopez and Casper below, as well as all the other celebrities at Vanity Fair's post-Oscars bash below:

Oscars 2012: Vanity Fair Party
Olivia Wilde & Jason Sudeikis(01 of13)
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Oscars 2012: Vanity Fair Party(Getty Images) (credit:Getty)
Tom Cruise, Katie Holmes, Victoria & David Beckham(02 of13)
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Oscars 2012: Vanity Fair Party(Getty Images) (credit:Getty)
Claire Danes & Gwyneth Paltros(03 of13)
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Oscars 2012: Vanity Fair Party(Getty Images) (credit:Getty)
Natalie Portman & Benjamin Millepied(04 of13)
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Oscars 2012: Vanity Fair Party(Getty Images) (credit:Getty)
Jennifer Lopez & Casper Smart(05 of13)
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Oscars 2012: Vanity Fair Party(Getty Images) (credit:Getty)
Tina Fey(06 of13)
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Oscars 2012: Vanity Fair Party(Getty Images) (credit:Getty)
Katy Perry & a friend(07 of13)
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Oscars 2012: Vanity Fair Party(Getty Images) (credit:Getty)
Nat Faxon & Jonah Hill (08 of13)
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Oscars 2012: Vanity Fair Party(Getty Images) (credit:Getty)
Jessica Chastain & Gerard Butler (09 of13)
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Oscars 2012: Vanity Fair Party(Getty Images) (credit:Getty)
Shailene Woodley & Judy Greer(10 of13)
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Oscars 2012: Vanity Fair Party(Getty Images) (credit:Getty)
Jean Dujardin(11 of13)
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Oscars 2012: Vanity Fair Party(Getty Images) (credit:Getty)
Matthew Bellamy & Kate Hudson(12 of13)
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Oscars 2012: Vanity Fair Party(Getty Images) (credit:Getty)
Busy Phillips, Michelle Williams & Glenn Close(13 of13)
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Oscars 2012: Vanity Fair Party(Getty Images) (credit:Getty)

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