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Miley Cyrus is "definitely dating" Rolling Stone magazine heir Theo Wenner according to Radar, but E! Online reports that the duo are "not dating." Hmm, who to believe?

The 20-year-old songstress "communicates with Wenner several times a day and says the pair are dating, albeit casually," according to Radar. "Miley talks about how hot Theo is and how nice hes been to her," a source tells the site. " Shes definitely completely in lust with him."

Wenner, 26, who dated Liv Tyler back in 2011, photographed Miley for her recent Rolling Stone cover, and according to E!, they "formed a friendship" after their shoot and stayed in "constant contact" after their initial meeting. Miley reportedly invited Theo to watch her perform and host Saturday Night Live earlier this month, but she "hasn't been in New York, where he [Theo] lives, for a week and has no immediate plans to return," the insider says.

Wenner is the son of Rolling Stone magazine owner Jann Wenner, and after interning with the mag, he became a photographer. Notable subjects he's shot include Jennifer Lawrence and Robert Pattinson, and he's also worked for Vanity Fair.