The bass player from 5 Seconds of Summer has been caught with his hand in his pants.. literally.

Calum Hood reportedly sent the video via Snapchat and it was quickly put on a vine video.

Click HERE to view the uncensored vine.. warning: this is extremely graphic!

http://thebestvines.tv/calums-dick-im-screaming-calumhood-5sos-calumsdick2k14-calumsnudes