The alleged romantic pair were seen spending time together at the Coachella Valley Music and Arts Festival in Indio, California, reports a source for Us Weekly.
"They were making out. They couldn't keep their hands off each other," the insider said of Overstreet and Scream 4 actress Roberts, who recently said that she wanted to enjoy her youth.
Another onlooker added: "They were talking about heading to a hotel pool."
More sources claim that Roberts was seen "leaning into [Overstreet]" during the festival's second day.
"But he seemed way more interested in his food," the source continued.
Watch Emma Roberts in the trailer for Scream 4 below: