Can someone explain this?

Its an advertisement for wonderbra. Let me confess that I did not get this, so someone please enlighten this lesser mortal. The link from where I got this. A few other bloggers who did not get this and that is the reason why I am posting this: Pradyot, Mani, Krishnendu, Neha, almost_useless. Leave your name in comments if you want to join the dumb club.
I am going to Kolkata tomorrow for couple of days. I am not sure if I will have free time or not but if you want to meet up you can call me on 09732550059.