A Chinese student wraps her arm around her waist and touches her belly-button to attempt a Belly-button challenge at a school in Luoyang city, centr Stock Photo - Alamy

Don't cyberbully her': celebrity Chinese street food seller with nice physique begs fans to spare woman who grabbed and caressed his arm during photo

Online trend 'Belly Button Challenge' overtakes Chinese social media - ABC7 San Francisco

With a belly hi-res stock photography and images - Alamy

Belly button hi-res stock photography and images - Page 2 - Alamy

Belly Button Challenge”: The new buzz exciting the Chinese web

Woman discovered wearing false stomach on Beijing subway

Chinese 'bellybutton challenge': Why are people posting pictures reaching behind their backs on social media?, The Independent

Belly button not pregnant hi-res stock photography and images - Page 2 - Alamy

Stigmatising': China influencer wearing miniskirt to deliver food forced to apologise after triggering online outrage for insult to women workers