How to Get Firm Abs if You're Skinny: 12 Steps (with Pictures)

Being skinny doesn't necessarily mean you have firm abs. Strengthening your abdominal muscles can help firm up your midsection and increase your core stability.
Being skinny doesn't necessarily mean you have firm abs. Strengthening your abdominal muscles can help firm up your midsection and increase your core stability.

Achieving toned abs is one of the most difficult things women can do. To really tone and define your

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