150lb, 5'4, 375 & 425cc, is there better way to position larger implants to fill out loose skin? (Photos)

First, don't post photos with your arms lifted as they distort your breasts. Second, you need a lift. Going larger will not substitute for needing a lift and will just give you larger and more sagging breasts. Third, with stretched out skin from initial weight gain and then weight loss, your tissue will not support heavier implants. Don't go bigger.

Dear amymitches,
breast revision surgery is the most difficult plastic surgery procedure performed. Botched breast surgery alters normal tissue planes and laxity, the ability of breasts to heal properly, and leaves scar tissue that dramatically affects the level of difficulty of the corrective surgery.Many patients come in to correct poor outcomes from their initial surgeries. The most common problems are due to implant malposition, bottoming out of the implant, poor scarring, and incorrect implant size.While the type of revision required will depend on the result of the previous surgery and the desired result of the patient, some revisions involve extensive pocket repair that may or may not need specialized external bras.If you are considering breast surgery revision, you should speak with a board certified plastic surgeon and have yourself properly assessed. Only after a thorough examination you will get more information and recommendations. Also, you have to make sure that your surgeon understands your breast augmentation goals.
Daniel Barrett, MDCertified, American Board of Plastic SurgeryMember, American Society of Plastic SurgeryMember, American Society of Aesthetic Plastic Surgery

Congratulations on your weight loss and maintaining it over the years ! If you're considering larger breast implants to achieve a size that you feel is more proportionate and aesthetically pleasing, it's essential to consult with a qualified plastic surgeon. They will be able to assess your unique situation, discuss your goals and preferences, and guide you through the available options.

During a consultation, your plastic surgeon will take into account factors such as your body shape, chest measurements, existing breast tissue, skin elasticity, and personal goals. They will also consider any previous surgeries you have undergone, such as your tummy tuck and breast augmentation.

The position and size of the implants can be tailored to help achieve the desired outcome. Your surgeon will evaluate the amount of loose skin you have and discuss whether larger implants alone will effectively address the issue or if additional procedures, such as a breast lift or revision of your previous breast augmentation, may be necessary to optimize the results.

I hope this helps,
best of luck !