Kardashian sisters are on the hunt for a plus-size beauty to model their new denim line.

Kim, Khloe and Kourtney Kardashian, aged 31, 28, and 33 respectively, took to Khloe’s blog to announce the search which invites women over the age of 18 to send full-length photos of themselves to the famous sisters.

Kardashian Kurves, the new line, has been created in conjunction with Sears and will feature three styles, each inspired by one of the three sisters.

The chosen model will star in an advertisement for the line, which has not been given a release date as yet.

Khloe Kardashian outlined the contest’s grand prize, a round trip for one to Los Angeles to attend a photo shoot, on her blog.

She added: “It’s a venture we’re really thrilled about!”

Kardashian sisters are on the hunt for a plus-size beauty to model their new denim line

The prize also includes one night’s accommodation in Los Angeles to ensure their model is in tip-top condition for the campaign’s photo shoot.

The line was originally announced through social media also – via Kim Kardaashian’s Twitter page.

The reality star posted: “Our Kardashian Kollection for Sears denim line is officially here!! There are three styles, each named after my sisters and me.”

Further images showed Kim Kardashian wearing her own version in the line.

She added on Twitter: “I’m wearing The Kim, which is a sexy, low cut, straight leg jean. Then Kourtney is wearing The Kourtney, a gorgeous skinny leg jean, and Khloe is wearing The Khloe, a tall curvy, high rise, boot cut!!”

Kim Kardashian continued to gush: “The jeans come in different washes so you can choose the fit and wash that’s perfect for you!”

“Nick Saglimbeni was the photographer and I love the way they turned out! Shoots with my sisters are the best!! Xo.”

All three sisters have posed in their first photos from the campaign, wearing their namesake trousers and identical button-down white shirts.

It is, of course, not their first collaboration with Sears.

They first launched the budget-friendly Kardashian Kollection for the chain store last August.

Unsurprisingly, Kim Kardashian did not look to her ex-sister in law, Kaela Humphries, to model the line.

The sister of Kris Humphries is a plus-size model herself and is signed to Ford modelling agency.

Interested fans need to submit an “essay” explaining what being “kurvy” and “konfident” means to them.

The deadline for entries is July 30.