A mouse at the Brooklyn Juniors Cheesecake Restaurant.

Forget cheese- these mice want cheesecake.

Fans of Junior's cheesecake got an unwelcome surprise over the weekend when photos that appear to show a mouse in the cake display at its flagship downtown Brooklyn location began multiplying across the Internet.

The eek-inducing images of the tiny vermin peering from between two cheesecakes and another of a mouse lounging between two trays were posted to the Web site Brooklynian.com Saturday afternoon by someone using the pseudonym "Rachel Rae."

"Rae" said a friend took them and posted on Facebook.

By Tuesday, the photos were picked up far and wide - sparking an outpouring of posts from Junior's cheesecake lovers.

"Don't get anything with chocolate chips on it," quipped a Brooklynian user named "fancy."

Junior's officials on Tuesday said they were taking the alleged photos seriously and had immediately called in exterminators, building engineers and pest experts to ensure the store wouldn't have any more unwanted customers.

"As soon as this isolated incident was brought to our attention on Sunday, we took immediate action to determine the cause," said owner Alan Rosen in a statement. "It was addressed professionally, and I can assure you the problem is being fully remediated."

Visitors to Junior's Brooklyn spot had mixed feelings about the alleged furry cheesecake fan.

"That's disgusting. Now I'm not eating this cheesecake I was going to bring home for dessert," said Star Smith, 21, a retail worker from Bushwick. "It'll be a while before I go back."

Other loyal customers took the allegations in stride.

"This is New York City, and there are rats and roaches everywhere," said Nyree Black, 34, of Flatbush, who has been coming to Junior's for 20 years.

"I'll be back. It happens."