Summer's Sizzling Romances

Amanda Seyfried, Taylor Lautner and more stars are turning up the heat with new significant others


Is love in the air for the former Twilight star? On July 30, Lautner got the rumor mill churning when he was spotted walking hand-in-hand with Avgeropoulos in N.Y.C., where they're currently filming the upcoming action movie Tracers. "They're happy and having a fun time together," a source tells PEOPLE.