If you were to make a particular type of bra like structure, the best way to make sure that *ahem* lovely lady lumps will not poke through would be to use a foam padding or buy premade Bikini or bra pads which you can get at any local Jo-anns or fabric(For fashion) store.
You would be able to cut them to shape but be careful as many are not made to be cut up and will ravel and pull apart.
Anime USA 2015...Halloween!
Steven Universe- Rose Quartz Gown version
Evangelion- Asuka Langley Soryu Yellow Sunddress
Magic Night Raye Earth- Ferio Yellow Shirt Version
Yuri Kuma Arashi- Kureha Bear Form
Yuri Kuma Arashi- Kureha OR Lulu School Outfit
Artist's Alley Hopeful....We'll See
Awesome Con 2016
Deadpool/X-men Comics- Siryn...not sure which version yet...
DC Comics- Raven Either Teen Titans or Original Comics version....