The actors were spotted embracing on a Los Angeles beach – both fully clothed and soaked from head to toe!
Gabel wrapped his arms around the American Idol alum as he leaned in for a kiss.
McPhee, 31, announced that she'd filed from divorce from husband Nick Cokas in May 2014, and while the two maintain an amicable relationship, the actress has been dating Gabel, 32, since earlier this year.
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Fans of the show have long been vying for a romance to blossom between their characters Paige (McPhee) and Walter (Gabel), especially after season 1 concluded with the first on-screen kiss between the two.
Scorpion will return for a second season Sept. 21 at 9 p.m. ET on CBS.