Mila Kunis reveals if Ashton Kutcher is a 'beer can or carrot stick' on 'Late Late Show'

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A Love Story: Ashton Kutcher and Mila Kunis

How far will you go to keep your secrets? That's what James Corden tried to test on actresses Mila Kunis and Christina Applegate during Monday night's episode of The Late Late Show with his new game: "Spill Your Guts or Fill Your Guts."

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The gross-out game involved a revolving wheel of nasty foods and liquids like clam juice, soy sauce and mayonnaise, calf brains, and cow's tongue. If the person did not want to answer their question, they had to eat or drink one of these.

Kunis started off strong, choosing to answer Corden's question: "Ashton Kutcher – Carrot stick or beer can?"

The Bad Moms star bypassed the clam juice and answered "carrot stick," but it turns out she was confused by the options, thinking a beer can was "short and stubby," but Corden quickly corrected her and Kunis changed her answer.

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"Like a Guinness!" she said of the tall, thick can.

There were a few soft ball questions after that, but Kunis was forced to eat a cow's tongue when asked what her box office flop Jupiter Ascending was about and why she chose to do it. Corden also had to eat calf's brains when asked who his least favorite "Carpool Karaoke" singer was.

See photos of the couple:

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Mila Kunis and Ashton Kutcher
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Mila Kunis and Ashton Kutcher
Actress Mila Kunis, left, and actor Ashton Kutcher, right, sit courtside together at the NBA basketball game between the Phoenix Suns and Los Angeles Lakers on Tuesday, February 12, 2013, in Los Angeles. (AP Photo/Danny Moloshok)
THAT 70'S SHOW (TV - 1998) DANNY MASTERSON, LAURA PREPON, ASHTON KUTCHER, TOPHER GRACE, MILA KUNIS, WILMER VALDERAMA T70S 002
PITTSBURGH, PA - SEPTEMBER 22: Ashton Kutcher and Mila Kunis look on from the sidelines before the game between the Chicago Bears and the Pittsburgh Steelers on September 22, 2013 at Heinz Field in Pittsburgh, Pennsylvania. (Photo by Justin K. Aller/Getty Images)
LOS ANGELES, CA - MARCH 22: Mila Kunis (L) and Ashton Kutcher attend a basketball between the Detroit Pistons and the Los Angeles Clippers at Staples Center on March 22, 2014 in Los Angeles, California. (Photo by Noel Vasquez/GC Images)
THAT 70'S SHOW (TV - 1998) TOPHER GRACE, WILMER VALDERAMA, DANNY MASTERSON, MILA KUNIS, LAURA PREPON, ASHTON KUTCHER T70S 001
Apr. 10, 2002 - Hollywood, CALIFORNIA, USA - DON STARK, DEBRA JO RUPP, KURTWOOD SMITH, WILMER VALDERRAMA, LAURA PREPON, DANNY MASTERSON, ASHTON KUTCHER, MILA KUNIS, TOPHER GRACE..THAT 70S SHOW CELEBRATES ITS 100TH EPISODE WITH A PARTY AT.SUNSET ROOM, HOLLYWOOD, CA.APRIL 10, 2002. NINA PROMMER/ 2002 K24623NP(Credit Image: © Globe Photos/ZUMAPRESS.com)
LOS ANGELES, CA - MARCH 22: Mila Kunis (L) and Ashton Kutcher attend a basketball between the Detroit Pistons and the Los Angeles Clippers at Staples Center on March 22, 2014 in Los Angeles, California. (Photo by Noel Vasquez/GC Images)
LOS ANGELES, CA - JANUARY 03: Ashton Kutcher (L) and Mila Kunis attend a basketball game between the Utah Jazz and the Los Angeles Lakers at Staples Center on January 3, 2014 in Los Angeles, California. (Photo by Noel Vasquez/Getty Images)
LOS ANGELES, CA - JANUARY 03: Ashton Kutcher (L) and Mila Kunis attend a basketball game between the Utah Jazz and the Los Angeles Lakers at Staples Center on January 3, 2014 in Los Angeles, California. (Photo by Noel Vasquez/Getty Images)
INDIO, CA - APRIL 27: (L-R) Actors Jordy Masterson, Mila Kunis and Ashton Kutcher seen during day 3 of 2014 Stagecoach: California's Country Music Festival at the Empire Polo Club on April 27, 2014 in Indio, California. (Photo by Frazer Harrison/Getty Images for Stagecoach)
LOS ANGELES, CA - SEPTEMBER 29: Mila Kunis and Ashton Kutcher arrive at LAX (Los Angeles International Airport). on September 29, 2013 in Los Angeles, California. (Photo by GVK/Bauer-Griffin/GC Images)
Actors Mila Kunis, left, and Ashton Kutcher watch the Los Angeles Clippers play the Detroit Pistons during the second half of an NBA basketball game, Saturday, March 22, 2014, in Los Angeles. (AP Photo/Mark J. Terrill)
Actors Mila Kunis, left, and Ashton Kutcher watch the Los Angeles Clippers play the Detroit Pistons during the second half of an NBA basketball game, Saturday, March 22, 2014, in Los Angeles. (AP Photo/Mark J. Terrill)
INDIO, CA - APRIL 25: Actors Ashton Kutcher and Mila Kunis attend day 1 of 2014 Stagecoach: California's Country Music Festival at the Empire Polo Club on April 25, 2014 in Indio, California. (Photo by Frazer Harrison/Getty Images for Stagecoach)
The newly engaged actors Ashton Kutcher and Mila Kunis attend an NBA basketball game between theNew Orleans Pelicans and Los Angeles Lakers, Tuesday, March 4, 2014, in Los Angeles. The Pelicans won 132 to 125. (AP Photo/Gus Ruelas)
Actress Mila Kunis, left, and actor Ashton Kutcher, right, sit courtside together at the NBA basketball game between the Phoenix Suns and Los Angeles Lakers on Tuesday, February 12, 2013, in Los Angeles. (AP Photo/Danny Moloshok)
LOS ANGELES, CA - FEBRUARY 12: Mila Kunis (L) and Ashton Kutcher attend a basketball game between the Phoenix Suns and the Los Angeles Lakers at Staples Center on February 12, 2013 in Los Angeles, California. (Photo by Noel Vasquez/Getty Images)
OAKLAND, CA - JUNE 5: Ashton Kutcher and Mila Kunis attend Game Two of the 2016 NBA Finals between the Golden State Warriors and the Cleveland Cavaliers on June 5, 2016 at ORACLE Arena in Oakland, California. NOTE TO USER: User expressly acknowledges and agrees that, by downloading and/or using this Photograph, user is consenting to the terms and conditions of the Getty Images License Agreement. Mandatory Copyright Notice: Copyright 2016 NBAE (Photo by Andrew D. Bernstein/NBAE via Getty Images)
LAS VEGAS, NV - MAY 22: (L-R) Actors Ashton Kutcher and Mila Kunis attend the 2016 Billboard Music Awards at T-Mobile Arena on May 22, 2016 in Las Vegas, Nevada. (Photo by Todd Williamson/BBMA2016/Getty Images for dcp)
LAS VEGAS, NV - MAY 22: (L-R) Actors Ashton Kutcher, Mila Kunis, and singer Demi Lovato attend the 2016 Billboard Music Awards at T-Mobile Arena on May 22, 2016 in Las Vegas, Nevada. (Photo by Todd Williamson/BBMA2016/Getty Images for dcp)
LOS ANGELES, CA - MARCH 28: Mila Kunis and Ashton Kutcher are seen at 'Jimmy Kimmel Live' on March 28, 2016 in Los Angeles, California. (Photo by RB/Bauer-Griffin/GC Images)
LOS ANGELES, CA - DECEMBER 19: Mila Kunis (L) and Ashton Kutcher attend a basketball game between the Oklahoma City Thunder and the Los Angeles Lakers at Staples Center on December 19, 2014 in Los Angeles, California. (Photo by Noel Vasquez/GC Images)
AUSTIN, TX - MARCH 14: Founder of A-Grade Investments Guy Oseary, Actor Ashton Kutcher and Mila Kunis attend The Launch Of Ashton Kutcher & Guy Oseary's Sound Ventures At SXSW on March 14, 2015 in Austin, Texas. (Photo by Anna Webber/Getty Images for SOUND)
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