In a new promo for “From Not to Hot,” Mama June reveals the motivation behind her huge weight loss

In this Thursday, Dec. 3, 2015 photo, June Shannon aka Mama June poses for a portrait in New York. Shannon and boyfriend Mike Thompson aka Sugar Bear are on the new season of “Marriage Bootcamp Reality Stars” on We. (Photo by Dan Hallman/Invision/AP)

Videos by Rare

Videos by Rare

Mama June Shannon is revealing a major inspiration behind her dramatic weight loss: a red-hot, size 4 “revenge dress” to be worn at ex Sugar Bear’s wedding.

An exclusive sneak peek of Friday’s episode of “Mama June: From Not to Hot,” shows the reality star returning to her Georgia home after having surgery. She was feeling “five months pregnant,” so her niece Amber decided to get her a “welcome home present” aka the dress.

RELATED: Honey Boo Boo and Pumpkin open up about Mama June’s massive weight loss

“I had to give her some motivation,” Amber said in the clip. “I mean, she’s gotta be looking good at Sugar Bear’s wedding.”

When she gave Mama June the gift, Amber told her, “This is for Sugar Bear’s wedding. This is what you’re working towards. To go, ‘ooh, baby baby, look at me.'”

“I’m a 22/24 right now,” Mama June said uncertainly. “This is like 20 sizes smaller than me.”

Even though she still had a long way to go at the time, Mama June couldn’t pass up the opportunity to show up to the event looking better than ever.

“You’re going to look better than the bride,” Amber said.

“Oh, I’m going to look better than her any damn way. Any day of the week,” Mama June agreed. “Sugar Bear’s going to be like, ‘Damn, I want to hit that with my sausage.'”

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RELATED: Mama June wears what size now?! A new promo for “From Not to Hot” makes a shocking claim

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