Pete Wentz and Michelle Trachtenberg: Sparks Flying or Just Caffeinating?
07/05/2011 AT 12:00 PM EDT
In light of Wentz's pending divorce from singer-actress Ashlee Simpson, could he and Trachtenberg – who were an item before he and Simpson wed in 2008 – be rekindling their romance? Or are they just friends?
Their outing comes shortly after Simpson was romantically linked to Boardwalk Empire star Vincent Piazza.
Despite their estrangement, there appears to be no bad blood between the parents as they took son Bronx to lunch in Studio City, Calif., recently.
Trachtenberg's rep had no comment while Wentz's was unavailable.