Just in time for Valentine's Day, Demi Lovato and Wilmer Valderrama are here to demonstrate how to "pamper your boyfriend" with the singer's skincare line, Devonne by Demi. And, of course, they make sure to keep things strictly professional. Obviously.

First, Demi demonstrates the power of her deep facial cleanser, squirting her guinea pig longtime boyfriend with enough of the stuff that he starts laughing as it accidentally drips into his eyes.

"Is it normal that I can't see out of my left eye?" he asks as Demi continues to rub the lotion into his skin, huge grin on her face the entire time.

Next up is the hydrating radiance mist, which Demi obsessively sprays onto Wilmer's face, smiling creepily straight into the camera and all. (This was approximately the exact moment in the vid where we couldn't stop laughing.)

And she finishes the whole thing up with an enormous glob of the three-in-one moisturizing primer, a step so over-the-top that it literally comes with a warning at the bottom: "Use in moderation."

Lovatics -- and anyone who has missed Demi's hilarious antics in 'Sonny With a Chance' -- be sure to check out Demi and Wilmer's hilarious skincare demo in the vid above.

Bare-Faced + Beautiful! See Demi Lovato + More Celebs Sans Makeup