The former `Laguna Beach` star is set to wed beau Jay Cutler after the NFL star proposed during a recent holiday in Mexico. A source said: "He surprised her with a quick trip to Cabo to ask her to marry him." There is no further news on whether the couple have set a date for their nuptials. Kristin, 24, recently spoke out about Jay - who she began dating last year - saying she thought he was the right man for her. She said: "I`d like to say he`s `The One`." She also said she loved living in Chicago with him, where he plays for the Chicago Bears. She said: "I love Chicago. My mom is there - and that side of my family - so, I get to spend time with my mom who I don`t get to see that often. But it`s been great. I love the city and during the football season I was there a lot. Now, we`re both out here." Kristin has previously dated Brody Jenner, who she starred with in `The Hills`.