According to the Daily Mail, the Oscar-winning actress has “fallen” for the “Modern Family” actor.
The two met through a mutual friend in Los Angeles earlier this year.
“Charlize and Eric get along incredibly well,” a source close to the actress told the Daily Mail. “They started off as friends but things are blossoming between them.”
“Eric is down to earth and funny and Charlize thinks the world of him. It’s early days but they’re very fond of each other,” the source added.
Eric has dated Katherine Tokarz and Charlize has been in a relationship for nine years with Stuart Townsend.
Theron adopted a baby boy, Jackson, in May.
Eric Stonestreet took to Twitter to deny the rumors of a relationship with the actress.
“I wish people would stop spreading rumors that Charlize Theron and I are dating,” the “Modern Family” actor said. “Its starting to make Halle Berry jealous,” he added.