Kristin Cavallari celebrates her 25th birthday

Kristen Cavallari celebrated her 25th birthday in Chicago with close friends and her fiance Jay Cutler.

A source confirmed to People that the celebration included a visit to the Shedd Aquarium and dinner at a Mexican restaurant.

The insider told the magazine “They had a great time.”

“Kristin really enjoyed her low-key birthday fesitivities.”

The Hills star had a busy year as she got re-engaged to Jay Cutler and competed in Dancing with the Stars.

Cavallari and Chicago Bears quarterback Cutler split up and broke off their three month engagement in July 2011.

The couple reportedly got back together in October. Kristen made it public in November by tweeting ‘This time its official…Jay and I are engaged again. ‘

28-year-old Cutler supported Cavallari during her time on Dancing with the Stars even though she was the third person eliminated much to the surprise of the judges and the audience.

Note the date on this article may be incorrect due to importing it from our old system.