skinny-bitches-only: Do this workout to
skinny-bitches-only: Do this workout to tone up and get that flat stomach! explanations: jack-knife sit-ups butterfly crunch plank raises: get in a plank position, then without moving your arms or legs, bend your hips so that you are in a downward dog position (but still on your elbows). Then return to your starting original plank position. That’s one rep.
skinny-bitches-only: Do this workout to
Reviewed by eri
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