Demi Lovato Playfully Slaps Wilmer Valderrama in St. Barts

Demi Lovato jokingly engages in a fight with her boyfriend Wilmer Valderrama while enjoying the beautiful weather in St. Barts on Thursday afternoon (December 17).

The 23-year-old singer and the 35-year-old actor decided to ham it up for the cameras after they spotted the photographers nearby.

PHOTOS: Check out the latest pics of Demi Lovato

Demi was also spotted taking a dip in the water and removing her swimsuit, which she also wore the day before, at one point!

The couple was seen the day before showing off a whole lot of PDA and even recreating the Dirty Dancing water scene in a romantic moment.

35+ pictures inside of Demi Lovato in St. Barts with Wilmer Valderrama…