Sisters who squat together! Incredibly toned bikini-clad fitness model uses her sibling as a weight while performing reps in viral video 

  • Swedish Katarina Konow swaps a barbell for her bikini-clad sister in the clip
  • The 24-year-old crouches down to allow her sister to climb onto her shoulders
  • Bikini-clad model executes a series of steady squat thrusts with apparent ease 

Some people might use a pair of 5lb dumbbells to make their squats more intense while sweating it out at the gym.

But that wouldn't be nearly extreme enough for this bikini-clad fitness model, who decided to use her equally scantily-dressed sister as a weight while performing reps in a video clip.

The footage shows Swedish Katarina Konow, 24, crouching down to let her sister clamber up onto her shoulders, before executing a series of squat thrusts with apparent ease.

Scroll down for video 

Fitness model Katarina Konow squats using her sister as a weight in the video released online

Both girls seem unfazed by the challenge, with Katarina showing no signs of strain 

The video, shared on YouTube, opens with the two girls dancing in front of the camera, with blonde Katarina in a white bikini while her brunette sister wears a similar version in black.

Katarina then crouches down to allow her sister, who is the same height and appears to be the same size, climb up onto her shoulders. 

The 24-year-old, who describes herself as a fitness model, actress and personal trainer on Instagram, shows few signs of strain as she stands up straight again, with her sister perched on her shoulders.

The girls, both in bikinis, dance for the camera at the start of the video clip

The 24-year-old, who describes herself as a fitness model, actress and PT on Instagram, crouches down to allow her sister to climb onto her shoulders

She then straightens back up to full height, with her sibling perched on her shoulders

The camera pans around to capture Katarina's reps as she repeatedly lifts her sister

A passerby driving a golf buggy seems surprised to come across the bikini-clad siblings

Katarina executes a series of squats with apparent ease - despite having to lift her sister

Smiling for the camera, she then executes a series of slow squats, crouching low to the ground then extending her legs again.

Her sister appears relaxed, apparently confident that Katarina is more than strong enough to lift her. 

The comments below have not been moderated.

The views expressed in the contents above are those of our users and do not necessarily reflect the views of MailOnline.

By posting your comment you agree to our house rules.

Who is this week's top commenter? Find out now