Breast Revision on Petite Frame to Go Larger, Is 500cc A Good Size? (photo)

Your breast appearance is not unusual for a woman who had a pregnancy following breast augmentation.  Your condition is termed pseudoglandular ptois.  This condition is characterized by breast tissue that hangs off of the implant. There is basically a mismatch between the center of the implant and the center of your breasts.   A larger implant along with a release or removal of the inferior portion of the implant capsule will help improve your overall shape.   As for the size of implant best for you, your plastic surgeon is in the best position to determine this based on your tissue characteristics and individual anatomy.  

Your doctor should be able to help you visualize what you desire using homemade sizers made from rice and knee-hi nylon stockings.  If you truly desire the look of what 500 cc's would do for you, go for it and accept the concerns voiced earlier about potential for stretching your skin excessively.  I have not really seen that happen in my practice and have only heard about it from others.  The larger implant will help diminish your  intermammary distance and add more fullness laterally.

Your implants are excessively high and you appear to have a mild contracture contributing to this.  You may consider revising your pocket at your surgery as well and should discuss this with your doctor.

If you are conservative and do not like to take chances, then stay with smaller sizes to avoid the potential long term risks. 

Gel implant would be suggested if you are experiencing issues with rippling or palpability.  And if you go with larger sizes, the gel would definitely be less palpable but realize the temperature changes very slowly.  Discuss your concerns thoroughly with your doctor and they should be able to address all of them adequately.  Best wishes!