Nope..Not finding anything that would work..The only thing close to what you are talking about, is a bra with fake breasts in it..But that would be even more noticeable, and i'm sure that isn't what you meant..
Cosplay DA Regular DA
-Stocking Anarchy (Panty & Stocking. Normal Ver.)
-Sora (Kingdom Hearts II Final Mix+. Limit Drive Ver.)
-Kyoko Sakura (Mahou Shoujo Madoka Magika)
-Akaito (Vocaloid. Black & Red Ver.)
-Marluxia (Kingdom Hearts Chain Of Memories)