The Scissors Crunch exercise works your abs and inner thighs.
This scissors crunch has three parts. First, you're going to do 10 pulses just like this with knees bent, then another 10 pulses with one leg straight, and your final 10 pulses with both legs extended and crossed, thighs squeezed together. You'll repeat this sequence one more time. To make this move harder, after each set of crunches do 30 pulses with your legs keeping your upper body still.