[Karren H]

The reason you didn't swell is although your breast fits in the dome... its mostly under compression and not expansion... if your breasts didn't touch the sides of the domes then the negative pressure would cause them to expand and there would be room to expand.... but since they were sucked in to a smaller space... only the tips of your breasts are being acted on by the negative pressure.... the rest is being compressed.... you might even be causing them to contract..... properly fit domes should only contact the base of the breast to give you the best results... imho...