I wanted to know how do i make the boobs stay up..help!

i would do it by laying the two different sides on formers horizontally so it could dry well -- i would add cornstarch to my fondant -- i might just use a modelling choco/fondant mixture plus cornstarch -- see on the left side there is a bit of a seam just above the two lowest folds -- you can see it on the side especially -- then just carefully apply -- and see how one side is pretty smooth and the other has the big deeper folds 'cause you want it to mesh together well so one side needs to be smoother -- and you can make sure your cake conforms to that shape underneath too