Gwen Stefani and Blake Shelton are getting flirty for real on the set of The Voice, a source reveals to Us Weekly. Credit: Trae Patton/NBC/NBCU Photo Bank via Getty Images

There’s no doubt The Voice coaches Blake Shelton and Gwen Stefani have chemistry. Both recently single, the stars shamelessly flirt — she called him “sweet” on the hit NBC singing competition Sept. 29, and he gave her a near lap dance.

One insider says it’s not just for show. “They’re a real thing,” a source close to Shelton reveals in the new issue of Us Weekly, adding that the fashion-forward mom, 46, is rubbing off on self-proclaimed “redneck” Shelton, 39. His style is changing, the insider reiterated.

Though a Shelton pal counters that the duo are not dating, the friend notes, “He thinks she’s a badass!”

Her ex also sees the value in her rockstar success: With no prenup, says a Stefani source, the L.A.M.B designer’s divorce from Gavin Rossdale “has gotten nasty."

Since their split, as Us previously reported, the Bush Rocker, 49, has moved into a $6.5 million house in the Bel-Air neighborhood of Los Angeles. “He’s picked out a lot of stuff and is enjoying the decorating process,” an insider told Us of the dad to Stefani’s three sons, Kingston, 9, Zuma, 6, and Apollo, 19 months.

In contrast, Shelton and ex-wife Miranda Lambert had a quick and clean breakup. The former couple finalized their divorce on July 20, just hours after they announced they were splitting. The country superstars have also remained friendly since, even joking with each other on Twitter.

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