Kristin Cavallari Jokes Boyfriend Mark Estes Looks Like Heath Ledger

Kristin Cavallari, 37, and toy boy Mark Estes, 24, hold hands during dinner date in Beverly Hills as couple as seen for the first time together

Kristin Cavallari Talks Romance With Mark Estes, Addresses Age Gap

Kristin Cavallari Shares Biggest Hang-Up in Relationship With Mark Estes, Talks Potential for Future