Can my sagging butt and huge banana rolls be fixed? (Photos)

Thank you for your question and photos. I had to go back and view your preop photo. Unfortunately, your liposuction was done by someone who does not understand or appreciate the dynamic anatomy of the posterior thigh/buttock junction. Again from another of your posts, the side view looks even worse. This is not easy to correct!! You need fat grafting, skin tightening and shortening the buttock crease with grafting. Your surgeon gave you a long buttock crease which is the sign of an aged droopy buttock. The buttock crease should stop about the middle of the posterior thigh. See a board certified plastic surgeon experienced in advanced body sculpting techniques for an in person consultation/evaluation. Even though you are 3 months out only, I can tell this will not get better, matter of fact will look worse as the swelling resolves. I would not recommend surgical intervention for at least another 3-4 months. Good luck with your healing.

I would approach it in two ways: First, continue to exercise, expecially tightening your glutes and posterior thighs. Second, start using ultrasound on the banana rolls to try to breakup the scar tissue as well as improving lymphatic circulation. Third, manual massage may help break up the band creating the "roll". 
If these three approaches do not cure the problem, then you can proceed with secondary SAL/liposculpture...but don't rush into it.
Get a game plan and work with it! Good luck! 

Thank you for your question. Unfortunately, the problem that you're having is relatively common.  I have developed a technique of infragluteal thigh lifting called the Del Mar Butt Tuck. Over the years, I've seen this deformity many times and have fixed it. It does require an incision along the bottom of the buttocks with removal of the redundant tissue. The scar does heal nicely and fades with time. Best wishes to you.