Is it safe to lose weight 3 months after fat transfer to breast? (Photo)

Hi, I'm 3 months after fat transfer to breasts with Brava. I'm very happy with how my breasts look now but I still don't like my stomach/sides. It's still flabby/fatty even after lipo. Can I safely lose a bit of fat now without putting my breasts in danger? I know they'll probably go down a bit as well, but I don't want the fat to die and to lose it forever. I want to have the option of putting the weight back on and getting my breast size back if I don't like them getting smaller.