Sienna Arrives With Boyfriend Jamie

Well fancy Sien you here, Jamie…

Sienna Miller arrives at the Calvin Klein “CK IN2U” fragrance launch party with model boyfriend Jamie Burke on Thursday evening in New York City.

Sienna glammed up and absolutely dazzled at the swank Calvin Klein event last night. And Jamie? Oh Jamie, Jamie, Jamie. For gawd’s sake, he wears the same grungy leather jacket to the airport as a red carpet event!

After the launch party, Sienna, 25, and Jamie, 21, hit up the PiTT VIP lounge at Club Plumm for the New York Emmy Awards Nominees Party, where Jamie performed with his band, Bloody Social.

Sienna arrived in NYC this past weekend and was greeted by boyfriend Jamie at JFK airport (inset). The pretty pair are already starting to dress alike, wearing matching leather jackets!

Just last month, topless Sienna Miller and shirtless Jamie Burke sunbathed and snuggled up together in Tulum, Mexico.

For more pictures of Sienna and Jamie at the Calvin Klein party, CLICK HERE!