The cast of The Summer I Turned Pretty recently put their honesty to the test in a Vanity Fair lie detector challenge, and the results were equal parts revealing and hilarious. Stars Lola Tung, Gavin Casalegno, and Christopher Briney took turns answering awkward, funny, and personal questions while strapped to the polygraph machine. The video, released on YouTube, gives fans an intimate look at the trio’s off-screen chemistry and playful banter.

Lola Tung Opens Up

Lola Tung, who plays Belly, kicked things off. She admitted to keeping childhood diaries under lock and key, though she laughed when pressed on what secrets they contained. The test also revealed her true fandom for Cher—though under pressure, she hilariously blanked on song titles before redeeming herself with “I Got You B

See Full Page