From E Cup to G Cup, boob job. (photo)

Thank you for the question and pictures.  Be very careful that IF you decide to proceed with breast augmentation surgery, you do so for the right reasons. Increasing breast size because “your boyfriend does not like your current breasts” is NOT good motivation to proceed.  Generally speaking, patients who are self-motivated tend to be very pleased with the outcome of breast surgery; patients who are not self motivated are less likely to be pleased with the long-term outcome. Generally speaking, the best online advice I can give to ladies who are considering  breast augmentation surgery ( regarding breast implant size/profile selection) is:
 
1. Concentrate on choosing your plastic surgeon carefully.  Concentrate on appropriate training, certification, and the ability of the plastic surgeon to achieve the results you're looking for. Ask to see lots of examples of his/her work.
2. Have a full discussion and communication regarding your desired goals  with your plastic surgeon. This communication will be critical in determining which operation and/or breast implant size/type/profile will most likely help achieve your goals.
In my practice, the use of photographs of “goal” pictures (and breasts that are too big or too small) is very helpful. I have found that the use of words such as “natural” or "G cup" etc means different things to different people and therefore prove unhelpful.
 Also, as you know, cup size varies depending on who makes the bra; therefore, discussing desired cup  size may also be inaccurate.
Regardless of what you might hear, there is no  reliable correlation between volume of breast implant used and increase in breast size achieved.
3.  Once you feel you have communicated your goals clearly,  allow your plastic surgeon to use his/her years of experience/judgment to choose the breast implant size/profile that will best meet your goals.  Again, in my practice, this decision is usually made during surgery.
I hope this, and the attached link, helps. Best wishes.

As others have said, never have plastic surgery for someone else.  You should be doing this for yourself.  That being said, I think you look fabulous as you are and going much larger would likely make you top heavy and even fat looking.  If you wish to be larger, then do this for yourself and pick a size that really fits on you and doesn't create the 'plastic surgery freaks' that are out there... unless that is what you really want.  By the way, your photos doesn't fit my idea of an E cup...