Cameras spotted the 21-year-old model and the 24-year-old "Baby" singer at Ca Del Sole in Toluca Lake, Calif. with her father, Stephen Baldwin. After the trio's hour-long meal, Stephen was spotted giving his daughter a hug and Justin a little smack on the rear before they all departed. The couple also appeared to share a little bit of a tense moment as they exited the restaurant.
"When they came out Justin's car had flat tire," a source tells E! News. "They were arguing about something and Justin was upset."
But the couple seemed in good spirits as they stepped out for brunch together on Wednesday at Joan's on Third, a location they've been spotted at frequently over the past month.