Mila Kunis revealed bizarre truth about her nude scene in Friends With Benefits

Mila Kunis once spoke about her nude scene in the 2011 comedy Friends with Benefits, lifting the lid on the raunchy shots with her co-star.

Rom-coms had a stronghold on the 2000s and early 2010s, with the Will Gluck-directed flick being one that viewers wouldn't forget quickly, starring pop star Justin Timberlake and actress Mila Kunis opposite one another.

The film follows Jamie (Kunis), a head-hunter that hires an LA-based art director named Dylan (Timberlake) for a position with GQ Magazine in New York.

After a night exploring the city together, he signs his contract and the two become friends, eventually deciding to have a casual sexual relationship after realising they're both sick of relationships, and agree that sex without any emotional attachment can be done, contrary to popular belief.

Mila Kunis has opened up on a particular scene from Friends With Benefits (Sony)

Spoiler alert, but as time goes on, the two fall for each other and after a falling out, the two admit their feelings for one another and end up together.

It's not exactly Christopher Nolan or Quentin Tarantino-level story writing, but the flick is an easy, feel-good watch that takes you back to the age of rom-coms.

But there is something about a steamy scene between Kunis and Timberlake's characters that you may not know, which the former spoke about on Ryan Seacrest's radio show back in 2011.

Apparently, it wasn't her bum that was on show in the scene with the 'Cry Me a River' star, explaining the audition process for her 'butt double': “These young ladies came in, they were in a casting room and I was there, the director and the casting director and my makeup artist were there.

“And these lovely women had to show us their derrieres and we chose the one that resembled my body the most without looking like it’s fake,” she explained.

Kunis has had an acting career that has spanned three decades (Kevin Winter/Getty Images)

It is well documented that the star refuses to do nude scenes, despite sharing steamy scenes in past titles, such as with Natalie Portman in Black Swan and with Zoe Saldana in After Sex.

Explaining why she didn't perform the scene herself in Friends with Benefits, she jokes: “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.”

However, it was Timberlake's butt on show in the scenes, as he stated that it was because he was 'young' and that he had to do it 'before gravity gets the best of me'.

Kunis also previously spoke up for gender equality in Hollywood in an open letter in 2016, even revealing that a director said her career would fail if she didn't take her clothes off for promotional material for an unnamed film.

Despite this, she stood her ground and has gone on to have an immensely successful career.