Squats, lunges/walking lunges, glute bridges, mule kicks
Well i hadn't a small butt but mine wasn't strong and round!
Start doing the squat challenge it will help u a lot to start doing sth for your bum then, start doing 3x15-25mins butt workout in a week on the other days have some rest or do sth for the other body parts!
In 4 weeks u'll see the changes and in 8 weeks ur friends will!
After this u'll be so proud that u will post a pic of your butt just like i did
Never give up!
A very easy and fast way is to leg press the amount you weigh if your at a gym at ho.e squat s lunges wall sit if you work your quads you will get a bigget but
And why would u want one anyway?