Inside Kylie and Kendall Jenner’s bizarre workout: Sisters test out new gym machine as they bond on The Kardashians

After Kendall Jenner began teaching her sister Kylie Jenner how to drive a stick shift in last week’s episode of The Kardashians, they both tried a ‘shocking’ new workout technique.

The 27-year-old Kendall – who stepped out for dinner on Wednesday at Giorgio Baldi –  and 25-year-old Kylie were earlier seen bonding on horseback, as Kendall took Kylie riding on one of her horses.

Then towards the end of the episode, they met up once again to try out a new workout technology known as Whole Body EMS, which trainer Bridget Whitman explains is, ‘Electro Muscle Stimulation.’

Bridget and another trainer are seen spraying these EMS vests with water, and when Kendall asks, ‘And so why are we wet?’ Bridget responds, ‘So the wet helps with the conduction of the electricity, essentially.’

Kendall asks, ‘Is there any condition you can have that you shouldn’t do this with?’

Bridget responds, ‘Yeah, there’s a few. If you’re pregnant or planning on getting pregnant,’ which transitions to a producer asking Kendall in confession, ‘How is the pregnancy going?’

A smiling Kendall says, ‘Good. I am supposed to get Ultrasound pH๏τos soon. I’ve only seen like an egg or whatever. It wasn’t like a shape, you know. My horse pregnancy, I’m not pregnant.’

Bridget tells Kendall and Kylie – who are both clutching black balls with each hand – to both, ‘bend those arms and legs, just make sure they are nice and bent because we are working our two muscles and they will lock out, it’s not fun,’ which shocks Kendall.

‘Lock out?’ an incredulous Kendall asks, as Bridget insists, ‘You’ll be fine, I promise.’

They start the workout as Kendall immediately says, ‘Oooh, I feel that,’ while the other trainer, Anthony, says, ‘If it’s ever painful, just yell at me.’

Kendall says, ‘Ohh yeah,’ as Anthony proceeds to ‘back down’ the stimulus a little bit, before Kendall says her arm is locked.