Leslie Mann, 54, and Anna Faris, 49, show off their insane bikini bodies with ‘Spa Weekend’ co-stars

Forget “Spa Weekend,” these ladies are ready for the beach.

Leslie Mann and Anna Faris slipped into bikinis, showing off their rockin’ bods in a video with co-stars Isla Fisher and Michelle Buteau on Instagram.

Mann, 54, looked chic in a little black two-piece while Faris, 49, chose a blue and brown striped style to show off their curves.

Fisher, 50, slipped into a wild one-piece by Camilla, featuring a mix of leopard and floral prints in a hot pink and violet colorway. She pulled her hair up into pigtails and added hoop earrings as she jumped into the arms of Mann and Faris for the playful video.

Buteau, 49, meanwhile, popped up at the end, sporting a vibrant cobalt one-piece.

Fans were obsessed with the quartet of enviable looks.

“Whatever this is… I f—king love it lol,” Jenni “JWoww” Farley commented while singer JoJo Levesque agreed, “This is so f—king weird and I am OBSESSED.”

“This is a spa weekend I would gladly attend,” one fan commented while another said, “Bodies are Bodying 😍” and a third wrote, “This is GOLD! You are all icons!! 👏👏👏”

Some were truly in disbelief, with a fan writing, “You guys look so good I thought this was AI for a sec LOL!”

Mann, Faris, Fisher and Buteau have been promoting their forthcoming flick this week, appearing on the streets of NYC — and in the subway — in their bathrobes.

“Spa Weekend” hits theaters Aug. 21.