Nature of relationship: They were dating other people when they first hooked up and later became boyfriend and girlfriend.
Time together: 2008-2010
In their own words: "It can be a little awkward when all of a sudden [you have feelings for] someone you'd call to talk about a different boyfriend. But there wasn't a lot of thinking and talking. It kind of just happened. We had fun together, and we were like, 'All right, let's see where this goes.'" — Jessica in a 2009 interview with Teen Vogue