Kourtney Kardashian roasts Kendall's red G-string selfie after backlash

Kourtney Kardashian has seemingly poked fun at the backlash that her sister, Kendall Jenner, received after posting a red G-string selfie last week.

Kendall was accused of photoshopping the racy snaps from a recent Skims photoshoot that sparked "body insecurity" posts from her fans.

The controversy was ignited when Kendall shared a number of pictures on her social media platforms from her photoshoot for sister Kim Kardashian's Valentine's SKIMS collection.

The pics show the 25-year-old wearing a red two-piece swimsuit, and they quickly went viral, amassing more than 12 million likes on Instagram.

In response to the images, some of Kendall's fans took to social media to share posts in which they were overly critical about their own physical appearances.

One person wrote: "How can I ever be ok with my body when Kendall Jenner is out here looking like that?"

Another person stated: "Kendall got work done on her body.

"I'm not saying it's impossible to be born with that body but she got fillers on her hips and a smaller waist to crate an hourglass illusion, plus she poses very well and photoshops. pls don't compare yourself when it isn't even real. [sic]"

Some even went so far as to accuse the reality TV star of photoshopping the images, or editing them to make herself look different.

Now, her 40-year-old sister, Kourtney has shared her response to the photoshoot. "Since I wasn’t invited to the sister shoot...," she captioned an image shared on Instagram.

She can be seen posing in front of a mirror in her wardrobe, wearing the red bra and knickers.

She also posted a series of hilarious snaps to her Instagram Stories where she has edited herself into the SKIMS photos.

Hilarious! Now, that's how you roast your sisters...