Dumbbell Side Bend...

Hold a pair of dumbbells at your sides, arms straight and core engaged (a). Without twisting your upper body, slowly bend to the left as far as you can, lowering the weight toward your left knee. (b). Pause, then slowly return to an upright position. Repeat, bending to the right side. That's one rep. Do 10.

Side Note... The best thing for your abs is laughing. Every time you laugh it strengthens your abs - If you start busting a gust, you are absolutely toning your abs :).