Jimmy Fallon invited Demi Lovato to join him in an "Ew!" makeout session on Monday night.

Fallon -- better known in his "Ew!" sketches as Sara, no "h" -- and Lovato's teeny bopper character Emily Livingston gabbed about a Spring Fling dance.

"What if we're at the Spring Fling and a boy wants to kiss us?" Lovato asked Fallon, who was decked out in braces, long blond locks and a purple dress.

The solution is simple: crush cushions. Fallon ended up with Mario Lopez and Lovato got Ed Sheeran.

But the practice make-out session was interrupted by Sara's geeky stepdad Gary, who volunteered to chauffeur the ladies to the dance.

Watch the sketch up top.

0222_fallon_insetView PhotosNBCJimmy Fallon's Most Memorable 'Tonight Show' Shenanigans

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