Kristin Cavallari's reunion with her teenage first love Johnny went south fast after he awkwardly trashed talked her in front of a live audience during E!'s Honestly Cavallari: The Headline Tour.

Kristin Cavallari and Harry Jowsey get flirty as she addresses their chemistry and "sexual tension" in E! News' exclusive sneak peek at Honestly Cavallari: The Headline Tour.