Will 650cc Breast Implants Drop and Have Cleavage?

Your breasts will drop. Natural tissue expansion occurs over three to four months, so you don't have to worry about not having "enough skin". However, you may get stretch marks if you don't have a lot of your own natural breast tissue or have  a tendency to develop them. It also depends on the quality of your skin - if it's supple and elastic, then you probably won't develop as many. Your cleavage after they've dropped depends mostly on how your cleavage was before surgery. If your breasts are naturally close together, then chances are you will have better cleavage than if your breasts are naturally far apart.

These are large implants. Depending on your skin characteristics and soft tissues, it will likely take 6-9 months to allow for the implants to drop. Predicting stretch marks is as impossible for the breasts as it is for the abdomen.

Without photos, it is hard to give you specific advice. However, 650 cc implants are large and you are correct to be concerned about the skin envelope. Hopefully, you have had this discussion with your surgeon. Implants that size put into a B cup breast are likely going to look like implant sunder a B cup breast. Make sure that this is the look that you are trying to achieve. Good luck with your surgery.

If you go forward with your plan of getting 650 cc implants, I'm afraid people will stop making eye contact with you - they'll be too busy staring at your large chest!
650 cc implants have very little chance of looking natural. Given their size relative to your small frame, they have the possibility of dropping too much and violating the natural crease at the base of the breast. This can be a very difficult problem to fix down the road. They will also stretch out your breast tissue and skin considerably.

Before you get these implants put in, make sure you have a long discussion with your surgeon about the potential long-term ramifications of such large implants. Also make sure that your surgeon is certified by the American Board of Plastic Surgery.

Best of luck. Hope this helps.

Eventhough I dont know your size and weight and height, I would say 650 cc breast implants are very big implants. They will drop over time but your chances of capsular contracture is higher. What I recommend you do is the rice test which will help you determine what size implant you would go for and the look you are going for. I have explained this on my website journal page.
Good luck.