Friends With Benefits star Mila Kunis said she didn’t want to give everything away in her new bare it all movie, so she admitted on Ryan Seacrest’s radio show that she used a butt double for the movie!

Her reasoning? “I showed side boob and I figured I can’t just give away everything all at once … I gotta let it all out in little pieces here and there,” Kunis told Seacrest.

What’s even more interesting is that Kunis herself attended the open casting call for her butt double to find the right cheeks. “These young ladies came in, and they were in a casting room, and I was there with the casting director and make-up artist,” Kunis told Seacrest, “These lovely women had to show us their derrieres and the chosen one resembled my body the most without looking like it’s fake.”

I can’t help but laugh when I imagine that audition…And I can only laugh harder when I imagine the resume of “the chosen one.”