A GYM athlete has shared her simple trick to achieve an instant and "insane BBL."

All it took was a pair of gym shorts shimmied into position to give the appearance of a perky booty.

TikTok user Meg shared her trick for an 'insane BBL'

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TikTok user Meg shared her trick for an 'insane BBL'Credit: TikTok/fitwithmeg
With a few adjustments, the longer shorts became a pair that gave a perfect booty

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With a few adjustments, the longer shorts became a pair that gave a perfect bootyCredit: TikTok/fitwithmeg

It was the easiest of hacks that could be done in mere seconds.

Meg (@fitwithmeg) is an athlete.

She rocks it in the gym and her TikTok is populated with her weight sessions and food plans.

This super-fit lady has over 73,000 followers and another whopping 1.5million likes.

Read more about booty workouts

She should know a thing or two about gym wear, and so it was in this post.

Meg appeared on screen wearing a pair of light gray, mid-thigh length shorts.

“Buying the longer gym shorts so you can do the ‘shorts trick,'" she wrote.

Then she explained the effort was worth it "to give yourself the most insane BBL."

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“Girl gym hacks," she continued.

She set to work and, with a few adjustments, the longer shorts became a pair that gave a perfect booty

This gym lady used a pair of "seamless cycling shorts," for her hack.

There was a lot of interest in her video with over 13,000 likes.

At least one fan questioned her tip: “This rather than already shorts?” they asked.

But as far as Meg was concerned it was a no-brainer: "Nothing like it," she said.

One more remark came from a viewer who was tempted: "Might have to try," they said.

She pulled the longer shorts up for instant BBL effect

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She pulled the longer shorts up for instant BBL effectCredit: TikTok/fitwithmeg
She looked pretty happy with the finished look

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She looked pretty happy with the finished lookCredit: TikTok/fitwithmeg