Ab Workout - I kid you not!

So there was a pregnant instructor at our body moves class last night.  I was already thinking thank god, I won't have to exhaust myself with a killer ab workout this time.  Boy was I wrong!  We did crunches and twists and semi-prone holding a weight and other yoga like poses that held us up and in tight tummy holds for what seemed like way past our 7:30 stop time.  The next class was lining up and watching us through the windows which of course made me try even harder.  I can sure feel it this morning.    I keep looking in the mirror expecting to see this huge change, but so far its more on the inside than the out.