So you want a tight and firm ass. Let me show you how to squat.
Step 1. Plant your feet shoulder width apart
Step 2. You want to pretend as if you are trying to sit in a chair. Your heels should never leave the ground. Your feet should stay planted the whole time.
Step 3. As you come to a standing position you should squeeze your butt as tight as you can to really work the muscle.
Step 4. Repeat steps 1 – 3 (40 times)
A tight ass is just a few squats away. Be patient with your body and your journey. You will get there and will be so confident when you do.