Jessica Biel - Lead
Credit: Erika Goldring/WireImage

Jessica Biel is flipping out over a new social media milestone!

The mom of one and her longtime love Justin Timberlake recently soaked up rays during a romantic Caribbean escape, and now the actress is taking time out from rest and relaxation to show off her incredible bikini bod and backflipping skills as a big thank you to her two million Instagram followers.

"I'm flipping out, you guys: 2 million! Thank you," the brunette stunner captioned an Instagram clip Monday. The short video shows her cheesing for the camera in a pair of black bikini bottoms and a tiny black crop top before impressively backflipping into the ocean.

Biel's last post on the social media app was of her adorable Halloween family costume showing herself, Timberlake, and the couple's 1-year-old son Silas all dressed up as characters from the animated film Trolls, and we have no doubt this too-cute shot put the star over the edge!

We'll be keeping an eye out for 'grams from the lovebirds' Caribbean vacation.