Love her - but it's mostly styling and makeup. She's not a different size in either of the pictures.
It's very easy to create the illusion that you're slimmer at that size but she just refuses to do ANY of the tricks. She clearly WANTS the "curvy, real woman" to be part of her look right now. I would say she's barely bigger than she was during KGB - just dresses terribly now.
That dress is a particularly bad choice. She would have rocked that bandage dress perfectly if she hadn't put on a clearly undersized thong (it's digging into her skin pretty hard, making an uneven plane for the dress to sit on)(#1 rule of bandage dresses to not wear any tight bands underneath, either use g-string or go without underwear). Then, she's slightly crunched forward and the camera angle is upwards, emphasizing a bit of bloat. That right there is a very unflattering combination. Bandage dresses can make you look amazing, but can be your enemy just as fast quickly because they're unforgiving.
She's really not that big though, given that she's 5'1". Just completely stupid with her clothing choices. She doesn't want "skinny" anywhere on the Lotus brand it seems. It's not representative of this era or something