Demi Lovato Fights With Boyfriend Guilherme 'Bomba' Vasconcelos - in Jiu-Jitsu! (Video)

Demi Lovato and her boyfriend Guilherme “Bomba” Vasconcelos got into a little bit of an altercation tonight – but it was all in fun!

The 24-year-old “Confident” singer posted an Instagram video of the couple – who started dating earlier this year – showing off their skills on the jiu-jitsu mat on Friday (February 17).

PHOTOS: Check out the latest pics of Demi Lovato

“When you kick bae’s ass 😂😂😂 #jiujitsu @bombatuf,” Demi captioned the clip.

They start off with a hand slap and fist bump before Demi promptly tackles and pins Guilherme to the ground.

The cutest part comes at the very end, though – watch below!

ICYMI, Joe Jonas recently called Guilherme a “good guy.”

Demi also showed off her figure in a skin-tight catsuit earlier this week. Click inside to see the pic…