#FreeTheNipple is encouraging women to Photoshop male nipples onto their breasts and take a stance againts the ridiculous - and, as they argue, sexist - social media rules pertaining to censorship.
Whereas male nipples are seen as acceptable on sites like Instagram and Facebook, female nipples are flagged as inappropriate -- how ridiculous is that? So, artist Micol Hebron created an easy way for all ladies to quickly make their snaps social media-friendly by designing this handy graphic:

The campaign is already going viral...