News, views and top stories in your inbox. Don't miss our must-read newsletter Sign up Thank you for subscribing We have more newsletters Show me See our privacy notice Invalid Email

We've had MumBods, ice buckets and even a condom challenge, but a bizarre new craze among women is taking Chinese social media by storm.

The trend is apparently all about proving you're a 'true woman' (whatever that means) by posting a photograph of your breasts holding up a pen.

(Image: CEN)

It's a simple idea. Lift up your top, put a pen or pencil under your breast and if it is held in place, you're a 'true' woman. Snap a selfie and post it on social media.

Some have even taken it a step further, experimenting with make-up brushes and bottles. It's similar to the #holdacokewithyourboob challenge which saw hundreds of women tricked into posting topless snaps.

(Image: CEN)

Pictures have already been shared millions of times across Chinese social media channels by users, often accompanied by the caption: "Pass the challenge to prove you're a true woman."

As with many other viral trends, it seems to really just be another way to show off your physique, following in the footsteps of the craze of reaching around your back to touch your belly button.

(Image: CEN)

The trend has caused some debate on Chinese microblogging website Sina Weibo, with some users complaining that some have an "unfair advantage" in being granted large breasts as a result of genetics.

So for those of us who aren't so well-endowed in the chest department, our womanhood is being called into question.

(Image: CEN)

Aimee Fletcher, who has undergone a double mastectomy, hit back at the concept on Twitter by posting a photograph of her own chest.

Aimee told Mirror Online: "Some people are so stupid and willing to do anything just to get their bodies on the Internet!

"I think that true womanhood comes from within, you are not defined as a woman by how you appear externally."

poll loading What do you think of this 'true woman' test? 1000+ VOTES SO FAR I love it It's harmless I completely disagree with it

What's your response to this story? If you have a personal attachment to any of the issues raised or would like to air your views, you can do so in the comments below or by emailing yourmirror@mirror.co.uk.