[allycat]

2) It is impossible to exercise one group of muscles to rid yourself of fat in the exercised area.
3) The breast are supported by the suspensory Cooper’s ligaments which are fibrous-tissue prolongations that radiate from the superficial fascia to the skin envelope. If you allow your breasts to bounce up and down during work play or while massaging them, your Cooper’s ligaments may be damaged or stretched, causing your breasts to sag.
4) Perform exercises to strengthen the attachment of Cooper's ligaments to the underlying pectoralis muscles.

These statements are correct. Particularly when exercising the pectoral muscles, you should ensure to squeeze at the top of the rep/contraction for 1 second or so. This really stimulates the muscle, blood flow, and you can even see instant results after your workout from the 'pump' if you engage the muscles correctly. Over time, the muscle will grow and push the breasts out noticeable. Technique is very important to stimulate the muscle.

1) If you want them smaller you can do a bunch of breast muscle chest exercises, and that will help to reduce the fat.
2) If you are uncomfortable with your size we recommend you to do Pec muscle exercises to reduce the fat in your breasts.

Incorrect. This implies 'spot reduction' or fat loss in a particular area.
To reduce breast size by reducing fat, diet and exercise is required to reduce overall bodyfat (that's a good thing anyway) will will reduce the breast fat(size).

Hope this helps