Suggestions needed...

At the gym, you can get a more firm, but plumper butt by doing the leg press machine. I believe thats what it is called! It's awesome!

I have the exact same problem but I'm a guy. And I do not expect to conquer this one. It's always been this way. My hands, arms, legs, feet, bum all look normal. It's my mid-section that houses 90% of my extra weight. My only hope is to get the mid-section down to match the rest.

I do see your issue though and I can see why you might want to do that. Butts that are larger in the right areas are awesome!! I tell my wife that all the time.

Honestly, we can not change genetics, we can only modify it a little bit.
If we have a big butt, we may reduce it or firm it with exercise and diet, but we are never going to get rid of it. The same applies to flat butts.
I don't want to be mean nor I want you to get discourage but we need to be realistic. Exercise is the key the build up and shape up pre-existing muscles, exercise does not create muscles..Exercise and diet eliminates/reduces fat, so muscles can became more noticeable (sometimes).
Some people can shape up and tone up faster and better, age and genetics need to be considered.

Honestly, we can not change genetics, we can only modify it a little bit.
If we have a big butt, we may reduce it or firm it with exercise and diet, but we are never going to get rid of it. The same applies to flat butts.
I don't want to be mean nor I want you to get discourage but we need to be realistic. Exercise is the key the build up and shape up pre-existing muscles, exercise does not create muscles..Exercise and diet eliminates/reduces fat, so muscles can became more noticeable (sometimes).
Some people can shape up and tone up faster and better, age and genetics need to be considered.

I respectfully disagree. It is possible to grow existing muscles, not just tone them or make them more noticeable, as you put it. Weight or strength training is the key to developing lean muscle mass. Cardiovascular exercise is great for reducing bodyfat and toning up, but some form of weight training is essential for increasing your muscle mass. Try the exercises that people have been suggesting without weights at first, and then when you feel comfortable doing them, start using weights. Use light weights at first, and gradually increase the weight as you become stronger. I would aim for a weight that you can do 10-15 reps before you get tired. When you can do the exercise more than 15 times, increase the weight a little. Make sure you have at least two days rest between your glute workouts and make sure that you're eating enough lean protein, and your muscles will grow. You can beat that flat butt!