Netizens are cracking up at Nature.

During a birthday 'V' app, the girls were talking about wrapping up the broadcast when one of the girls let natural body functions slip. As soon as it happens, the girls can't stop but burst into laughter, and the broadcast just gets chaotic from there as the girls can't stop giggling. 

Netizens are mostly thinking it's cute, saying, "Look at all of their reactions," "Well, it's only natural as a human. They fit their group name," "It was pretty cute," "You can definitely tell who it was", and more. Some think it may have been someone behind the camera, and yet others think it may have been an attempt to get more onto the radar of the public.

Check out the video at 0:09 above.