Evan Peters and Emma Roberts are dating again.

Speaking to Us Weekly magazine, a source close to the 'Scream Queens' actress said: "Emma and Evan are definitely back together."

The pair - who star together in 'American Horror Story' - have been amicable since their split in May, and were seen acting "like a couple" back in August when they attended the FYF Fest music festival in Los Angeles.

An eye witness said: "They definitely seemed like a couple. They were hugging and she was playfully messing around with him. They definitely showed signs of being together."

The duo first met on the set of 'Adult World', and started dating soon after in 2012.

They got engaged over Christmas in 2013 but called off their marriage plans in June 2015.

Evan and Emma later reconciled in August of the same year before splitting in May.

Speaking about how she met Evan, Emma previously said: "Everyone thought we dated on the movie ['Adult World'] and we didn't, not for a long time. I, actually, on the set, was like, 'Oh yeah, we're totally gonna date.' And I would try to, like, flirt with him, which ended up looking like I had something in my eye because I'd be like, 'Hey, what's up?' And he literally didn't speak to me the entire movie. He thought I was so weird."

The news of the pair's most recent reconciliation comes after it was reported that Emma had been seeing a new man in June this year, whom she met through her friend and fashion designer Brit Elkin.

A source said at the time: "Chris is one of the most understanding and laid-back guys. They've been dating for a little under a month."