if you don't have anything on top then its difficult to simulate any believable cleavage .... I've been using a home made device that enlarger my breasts using negative pressure...... over a B cup and enough breast material to make them look like D's with an add 2 cup size pushup bra... my device is very similar to the commercial Brave system and to this girls one... www.sheebalibeda.com/breast.html
