I know what you're saying but she's used filters for years and yet always hidden her arms.
The reason I think it's weight loss jabs in this instance is because in this picture of her in the red dress she doesn't have much muscle definition to her arms and they're still quite flabby but obvs less so than before, hence why she's happy to have them out.
Also, if it were a filter, I really don't think she'd be able to resist giving herself more definition.
And this pic is from Alex who was probably far too busy warping her own face to think about anyone else.
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