'Sorry' beauty Naya Rivera, who plays the feisty Santana Lopez on hit U.S. musical series 'Glee', has revealed that she rehearsed kissing Demi Lovato before they got in front of the cameras to ease the on-set tension.

Lovato signed up for a recurring role on 'Glee' and will play Rivera's character's love interest, and it has now been said that they had a sneaky make-out session in a dressing room before they got to work. 

Rivera told Access Hollywood: "I made out with her, like, in my trailer before we shot the scene. So then I just, like, warmed her up. You know what I'm saying?"

Lovato recently expressed her affection for Rivera, telling MTV News: "Well I took a meeting so before I even booked the role. I knew what the role was going to be, and [Naya Rivera and I] had an awesome time working together. She's such a badass; I love her. And I've been friends with a lot of the people from the cast beforehand, so I feel right at home."