The struggle is real between alcohol and Reese Witherspoon. While in the elevator post party with Kate Upton, Zooey Deschanel, and Cara Delevingne, the actress could not pronounce Delevingne. Watch the hilarious video below!

"If you force me to say your last name, I'll be f***ed," the "Legally Blonde" star joked to the Burberry model.

Delevingne, who is dating American actress Michelle Rodriguez, uploaded the video to Instagram, captioning:

"The confusion @reesewitherspoon @zooeydeschanel @tennesseebunny @kateupton #HAHAHAHA #loveyouladies."

A second video was quickly posted of Witherspoon giving advice, which was later deleted. She starts off joking about her name once again.

"I love you Caara, Car-a, I don't know what your f***ing name is," she joked before slowly pronouncing "Del-e-ving-ne."

"The most important thing for a name for a girl is that a man can whisper it in his pillow," Witherspoon adds.

Delevingne was very much entertained by the "Walk The Line" star, who captioned the second video, "I ??U @reesewitherspoon #wisewords #loveitwhenyousaymyname #cheeky."

This is not the first time we see a drunk Witherspoon in action. Last year she and agent hubby Jim Toth were pulled over while intoxicated.

The actress tried defending Toth, with choice words like "You're about to find out who I am," she said. "You're going to be on national news."

The fame card did not work for them, but the couple allegedly turned their lives around after the incident.

"Reese and Jim have stabilised their out-of-control home life and are telling friends that their arrest was a huge wake-up call and the best thing that could have happened to their marriage," an insider told Radar Online.

"They're in a much better and solid place now and everyone's breathing a sigh of relief because it was touch and go for a while, and her drinking was getting out of control."

Watch Witherspoon hilariously try to say Delevingne!

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