Dwayne "The Rock" Johnson has some fun poking fun at his Baywatch costar, Kelly Rohrbach

Credit: Instagram

Not just anybody can fill Pamela Anderson’s one-piece as Baywatch’s C.J. Watson, so Dwayne "The Rock" Johnson needed to make sure her successor, Kelly Rohrbach, was up to the task.

Johnson, who’s starring with Rohrbach in the upcoming big-screen reboot of the iconic show, posted a series of hilarious videos of his sexy costar (dressed in the memorable red bathing suit) prepping for the part to Instagram on Monday.

“A pleasure welcoming @kellyrohrbach to our #BAYWATCH family for the iconic role of ‘CJ Parker,’ ” Johnson captioned. “Yes, she’s a walking smoke stack but more importantly… she’s smart, tough and funny. Just the way we like ’em. Get ready world, we can’t wait to bring you our generation’s #BAYWATCH! You’ll have fun… (last emoji somewhat inappropriate).”

In the below clip, which contains some explicit language, the model jokes that she can’t swim, which Johnson quips doesn’t matter for her role as the bodacious lifeguard.

In the next clip (posted below), Rohrbach and Johnson run down the beach side by side in a parody of the classic Baywatch slow-motion sequence. Things take a sharp turn from the show’s usual slo-mo sexiness when Johnson shoves Rohrbach into the sand, and the theme song gives way to Drake’s “Hotline Bling.”

“For our #BAYWATCH and the iconic role of “CJ Parker” I had to make sure @kellyrohrbach was… tough,” the San Andreas star explained.

In Johnson’s final clip, which also contains some explicit language, the pair have some slight confusion over how slow-motion cameras work.

For our #BAYWATCH and the iconic role of “CJ Parker” I had to make sure @kellyrohrbach was ridiculously sexy running in SLO-MO….,” he joked.

The Baywatch film will be the first major onscreen role for the supermodel, who recently split with her boyfriend, Leonardo DiCaprio. “They have been broken up for a few months now,” a source who knows them both tells PEOPLE. “They are very friendly and it’s super amicable.”

The breakup was caused by their hectic work schedules, according to the source. “They are both so busy and he’s got a big movie coming out and she’s one of the biggest supermodels in the world. There is no other person in the picture.”