Kylie Jenner prompted rumors of a second pregnancy on Wednesday afternoon after showing off her soft pink and blue nails on social media.

The mother-of-one debuted new false nail extensions in shades commonly associated with baby boys and girls with her 130million Instagram followers.

Kylie, whose popular Kylie Cosmetics range has helped turn her into the world's youngest billionaire at just 21, captioned the snap:

Back at it again with nail bae.

But the post inadvertently led to claims that the reality star, who welcomed first child Stormi with rapper Travis Scott in February 2018, is pregnant.

Commenting on the snap, one fan replied: 'More like back at it again with a second baby.'

While another wrote:

All I see in this picture is that she’s pregnant with a girl or boy ???!!!??

Offering a blunt response, a third added:

Kylie is pregnant I said it first.

Kylie's post comes amid claims she has walked away from long-running show Keeping Up With The Kardashians following best friend Jordyn Woods' fling with Tristan Thompson.

A source told Us Weekly: 'Kylie took a little break from filming Keeping Up With The Kardashians and recently got back into filming and it’s been a struggle and difficulty.

'She was very upset about the situation with Jordyn and also just didn’t want to deal with it and have to address it.'

Kylie is only seen for a couple of seconds in a trailer for the new season, with footage captured as she is preparing for a photo shoot.

In a voiceover, she says: 'I just hope that there is a light at the end of this tunnel but I just don’t see it now.'

The trailer also includes some throwback footage from Kylie and Jordyn's long and intense friendship, showing the two being celebrated by Kris Jenner, who raises a toast to them at a family gathering.