They have to be fake. If she did lose a ton of weight, then her natural breasts would be flat, and saggy. If those BBW pics are really her, look at where her boobs are placed on her chest naturally...then look at her post weightloss pics. Round. Boobs. Its physically impossible for a woman to gain perfectly round, symmetrical perky boobs after dropping that kind of weight.
She looks fucking awsome though. Good for her!