Millie Bobby Brown took a lie detector test and spilled on her “Stranger Things” co-star.

She was asked by Vanity Fair, if Finn Wolfhard is a still a “lousy kisser.”

The actress replied in the affirmative.

She revealed Wolfhard has at least not gotten better with her.

Brown starred as Eleven, while Wolfhard played Mike Wheeler on “Stranger Things.”

“Stranger Things” started airing in 2016.

They shared their first kiss on screen in the show's first season.

Brown said kissing on the film set was awkward.

The “Enola Holmes” star is dating Jake Bongiovi.