Lots of women say they would like to slim down their thighs and bums.

If that is your goal then this is the exercise.

As you get stronger you can increase the resistance by holding your baby as you squat.

---

Start with your feet about 1 and a half times hip distance apart. Tighten your tummy muscles and keep your back flat. Bend your knees.
Let your weight travel down through your heels. Squat down as low as you can. Keep your back flat. Let your trunk tilt forwards. Don't let your bottom come down lower than your knees. You should still be able to see your toes infront of your knees.
Return to start position. Tighten your bum muscles as you come up. Don't let the back arch, try and keep the spine as neutral as possible. Do 2 sets of 12 squats at least 3 times a week.