See Gwen Stefani Pinch Blake Shelton's Butt During PDA-Filled Date at RaeLynn's Wedding

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Gwen Stefani and Blake Shelton just can't keep their hands off each another.

The couple was definitely not shy about showing some PDA at country singer RaeLynn's wedding this past Saturday in Franklin, Tennessee, as evidenced by this video of the pair sharing a few sweet moments together. Stefani, looking chic in a black cape, pinches Shelton's butt at one point, as Shelton leans down and affectionately kisses her on the head.

RaeLynn, 21, and Shelton, 39, are close, as the "God Made Girls" singer rose to fame after competing on Team Blake during The Voice's second season in 2012. She's also remained close with Shelton's ex-wife, Miranda Lambert, over the years, joining her on multiple tours. A source told ET that Lambert was invited to RaeLynn's nuptials, but did not attend.

WATCH: Gwen Stefani and Blake Shelton Celebrate Her Son Apollo's 2nd Birthday With Plenty of PDA -- and No Gavin Rossdale

"I talk to both of them. You know, they're grown-ups. You handle things," RaeLynn, who's up for New Female Vocalist of the Year at the Academy of Country Music Awards on April 3, told ET in December of her relationship with the now-exes. "[They said] 'It's all about when you find the right person, you gotta kinda go with it.' They've both been so supportive."

And she had nothing but positive things to say about Shelton's new romance with 46-year-old Stefani.

"They're both great people," she said.

WATCH: Gwen Stefani Tries Really Hard to Not Talk About Boyfriend Blake Shelton to Ellen DeGeneres

Shelton and Stefani haven't exactly been hiding their couple status lately, and on Sunday night, the two made their official red carpet debut at the Vanity Fair Oscar party together. The "Make Me Like You" singer looked gorgeous in a red, sheer Yanina Couture gown, holding hands with her beaming beau.

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