Things are getting steamy on set.
The 18-year-old actress donned a red, printed, one-piece bathing suit with a plunging neckline, and completed the look with short-shorts.
Grier, 18, sported a pair of jeans with a dark green, button-down shirt.
The two shared a kiss in the scene, with Thorne clutching Grier’s neck as he held her waist.
In the film, Tyler (Taylor John Smith) turns to the new girl in town, Grace (Thorne), after getting into a fight with his girlfriend Ali (Halston Sage). Things quickly get complicated when Grace is determined to keep Tyler’s attention, even after Ali has agreed to take him back, according to Variety.
On Tuesday, Thorne posted a photo from the day filming on set.
“#mood #yougetme #YGM #youngforever #earthday #floral #tuesdaymorning #swim,” she captioned a photo of herself making a silly face.
Days earlier, Thorne took to Instagram to document her time at the star-studded Coachella music festival – and her purple hair.
“I’m only human, can’t you see? I made, I made a mistake Please just look me in my face Tell me everything’s gonna be ok #coachhella #boho #flume #beyourownfitgirl,” Thorne captioned a video clip of herself wearing a purple wig, shorts and a fanny pack.
Alongside another clip, the star said she was excited to start filming You Get Me.
“Even more tired now but.. very happy I get to start on #yougetme #YGM tomorrow!!” she wrote.