Anyone else seen this? Started with some girl (I believe on Tumblr) telling other girls their boobs go inside their shirts (see first image). There was a big response from other girls on Tumblr, and then some more humorous responses and spinoffs. Stil researching. If there's already an article/thread about this, I apologize since I couldn't find one.
EDIT: The girl's name is officialsabrina_xo, she's pretty popular on Quickagram and some other Instagram based websites. I could've just checked the watermark to find that out… oh well!