C-section belly

Just turned 40, 2 kids, 1st was natural, 2nd was c-section. I sit all day so am finding the shelf is growing. I don't mind the scar but hate how it looks when i am standing up in my undies. I can see the scar stick out further then the rest of my skin. I am very aware of it & can only imagine what my husband thinks, not that he couldn't lose a few lbs himself. I have found that the older I get & the more I gain & lose, the worse it gets. I am 5'8" and 192 lbs. Body fat is like 30%. Any specific ab exercises you skinny chicks can suggest would be appreciated!