A female bodybuilder has broken a world record for crushing watermelons with her thighs.

Watermelons

Watermelons

Kortney Olson burst three watermelons in the space of 7.5 seconds, easily eclipsing the previous record of 14.65 seconds set by Ukrainian Olga Liashchuk back in 2014.

Olson also beat the male record of 10.88 seconds from Iranian athlete Rohollah Doshmanziari.

She performed the record-breaking stunt earlier this month to celebrate the opening of her athletic clothing store in Las Vegas.

Olson told the Times-Standard newspaper: "I just decided in correlation with our store opening because it's a community space and we really want to start utilising the space to teach things, to share this watermelon-crushing story with younger girls."

She also explained that it was a lengthy process trying to make sure her record attempt was valid.

Olson shared: "You've got to have two witness affidavits, you have to use two official stopwatches that are within a tenth of a second, and then you take the average of your two timekeepers.

"You go through quite an extensive application process and then go from there."