Motivation : Tighten Up Tuesday: Plank, Push-Up on Stability Ball | Skinny Mom | Tips for Mom… June 15, 2017, 6:18 am 2.4k Views Fitness and body Motivation Before and After Description Tighten Up Tuesday: Plank, Push-Up on Stability Ball | Skinny Mom | Tips for Moms | Fitness | Food | Fashion | Family 19 shares