'Keeping Up With' Kim and Kourtney Kardashian and Ryan Seacrest

It was a "Keeping Up With the Kardashians" reunion in NYC on Tuesday night.

Kim and Kourtney Kardashian caused quite the stir when they met up for dinner with Ryan Seacrest, executive producer of the family's brand of reality shows. All three were in town to promote projects - the ladies for "Kourtney and Kim Take Miami" and Seacrest for Fox's "American Idol."

"The girls walked into a packed bar on the first floor, causing quite a stir where everyone was clamoring for a view," dished a spy at Bill's Food & Drink, where the trio ate dinner.

When Kim, who is expecting her first child with boyfriend Kanye West, and Kourtney made their way up to the private dining room on the third floor, "onlookers couldn't get enough, and were stopped by security," the witness said.