Kate Upton Wears Her Underwear For A Night Out

Kaitlan Collins | White House Correspondent

Kate Upton just gave her fans an eyeful.

Kate Upton underwear

(Photo: Splash News)

The 23-year-old Sports Illustrated Swimsuit model skipped clothes when she went to her birthday party in New York Wednesday night. Instead, Upton opted for a black bodysuit with a sheer overlay — and nothing else.

Kate Upton underwear

(Photo: Splash News)

Kate Upton underwear

(Photo: Splash News)

Though she’s known for her front, it gave fans a generous view of her backside. (RELATED: Britney Spears Wears Her Underwear On The Red Carpet)

Kate Upton underwear

(Photo: Splash News)

Kate Upton underwear

(Photo: Splash News)

Upton turns 24 Friday. (RELATED: 50 Beautiful Photos Of America’s Favorite Bombshell: Kate Upton)

Kate Upton underwear

(Photo: Splash News)

Kaitlan Collins

White House Correspondent

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