Kris Jenner with a bigger top lip in the new season of Keeping Up With The Kardashians trailer

In a new trailer for the seventh season of Keeping Up With The Kardashians, Kris Jenner, the matriarch of the family, is seen with a pout which looks suspiciously enhanced compared to her usual appearance.

Kris Jenner, 56, is seen looking shocked as she wakes up in her bed with a much bigger top lip.

The leader of the Kardashian clan shows off her new look to daughter Kim, 31, and son Rob, 25, as the two siblings stand gobsmacked at their mother’s bedside.

Kris Jenner, who is still in her pyjamas and is wearing no make-up, appears horrified by her overnight transformation and tries to hide her mouth with her hand.

The rest of the family hear the commotion and rush into the bedroom surprised by Kris Jenner’s plump top lip.

It is not clear from the 30 second clip whether the mother-of-six has really had a bad reaction to a cosmetic surgery procedure, or if she is playing a prank on her children.

Later in the trailer viewers are shown the Kardashians going on holiday to their favorite destination of the Dominican Republic.

It isn’t long before Kris Jenner is the centre of attention again as her daughters decide to target their mother.

Four bikini clad Kardashian girls gang up on Jenner who is again lying in her bed.

The socialite and businesswoman is literally dragged from her mattress kicking and screaming on a dark blue rug.

Her daughters pull her all the way to the swimming pool before dumping her in the crystal blue waters while she is still wearing her dressing gown.

Embarrassed and not much amused by the antics of her offspring, Kris Jenner barely keeps her dignity as her derriere is exposed as she tries to exit the pool.

The seventh season of Keeping Up With the Kardashians will premiere on 20 May 2012 on E!

With eighteen, hour long episodes, this will be the longest ever series of the popular reality TV show.