If you are looking to increase the roundness and size of your buttocks, you can do lunges, deep squats, lunges, and pointed butt lift on the knees. These are excellent exercises for creating a v-shaped stomach because they activate the gluteus Maxus. This can help increase your butt volume. V-shaped bums can indicate unhealthy fat accumulation around the waistline and can cause sagging, unflattering, or unflattering butt shapes. You can eat well and reduce calories. To round out a V-shaped or sagging stomach, step-ups, and rotating lunges will help you.