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Katie Austin's 7-Minute Deep Core Workout

Join SI Swimsuit model Katie Austin for a quick and effective core workout, consisting of toe taps, hip bridges, crunches, planks and more. Hi Sports Illustrated Swimsuit, it’s your girl Katie Austin ...
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Katie Austin’s 7-Minute Deep Core Workout Is a Quick and Effective Burner

Kickstart your New Year alongside SI Swimsuit with 31 Days of Wellness! This January, SI Swimsuit will unlock exclusive ...