By Brandi Fowler
Updated Jun 09, 2016 @ 7:00 pm
Mustafa Yalcin/Anadolu Agency/Getty Images

You can count on Blake Lively to never take herself too seriously. In honor of Throwback Thursday, The Shallows star shared what might be her best #tbt yet, taking a couple of cracks at herself while she was at it.

"There's only one thing more terrifying than this...," Lively captioned a still from her upcoming thriller flick on the 'gram Thursday. In it, the actress shows off her toned legs and arms in bikini bottoms and a rash guard, as she sits on a rock in the middle of an ocean next to a seagull, looking at the water around her with a frightened expression on her face.

The 28-year-old mom quickly jokingly showed her followers what could be creepier than that photo when she shared an epic throwback snap not long afterwards. "...THIS," she wrote alongside a snap that showed mini-Blake in full Little Mermaid glory, striking a pose on a rock like Ariel with a smile, with her hair in a high ponytail. The photo also included a backdrop of a ship from the Disney flick, along with Ariel and other characters from the animated film (including Scuttle the seagull) looking up at her.

In the Shallows, Lively plays a surfer who fights to survive after getting attacked by massive great white shark. Who knew she was already a pro at slaying the seas.