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Reese Witherspoon's Mom Had the Best Reaction to Her Daughter's New Show 'Big Little Lies'

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Reese Witherspoon's mom is telling it like it is!

The 40-year-old actress took to Instagram on Monday, March 13 to reveal her mother Betty Reese's hilarious — and totally candid! — reaction to her daughter's new TV show Big Little Lies.

"If you missed #BigLittleLies last night... #SpoilerAlert!! 😂 #TextsFromMom #BettyKnowsBest," Reese captioned a text conversation between herself and her mother about her latest television gig.

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The convo begins with a message from Betty that read, "I saw Little Lies tonight and I liked it, ❤️ Mom." Then, Reese responded with, "Great!! Tonight was a good one."

If you missed #BigLittleLies last night ... #SpoilerAlert !! 😂 #TextsFromMom #BettyKnowsBest

A post shared by Reese Witherspoon (@reesewitherspoon) on

"Lots of sex yes," Betty replied to her daughter. Too funny!

"Cute mom text, I love it!" one of Reese's 8.8 million followers commented on the photo of the messages with another adding, "That is the funniest thing!"

In Big Little Lies, Reese portrays Madeline Mackenzie alongside Nicole Kidman and Shailene Woodley, who play her character's friends, Celeste Wright and Jane Chapman, respectively.

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The dark comedy-drama miniseries first premiered on HBO on Sunday, Feb. 19 and is based on author Liane Moriarty's hit 2014 novel of the same name. The seven-episode show additionally stars Alexander Skarsgård, Adam Scott, Zoë Kravitz, and Laura Dern in supporting roles.

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Reese with her mom, Betty, in March 2006. (Photo Credit: Getty Images)

"It became this really interesting group of women whose work I’d always loved," Reese said in a recent interview of the show, which she also produced. "I learned so much from each of them."

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"We would say, 'I think they’ve kept us separate for this long by telling the story of how tricky it will be to get a group of women together,'" Reese's co-star Laura echoed in another interview. "Honestly, it was the easiest time we’ve ever had."

The final episode of Big Little Lies is set to premiere on HBO on Sunday, April 2.

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