Before we get into the best ab workouts for women, let us get something off our chest: if you have a bikini and you have a body, you have a bikini body. There, we said it. However, we do know that there are parts of your body, namely your tummy, that you feel you'd like to work on.The biggest reason people who aren't overweight don't have tight tummies is that their ab muscles are weak. In other words, ab muscles are like a girdle made of wimpy fabric instead of industrial-strength fibres. Source by mcmillin2009