Plump Belly To Curvy:
If you're asking how to get it, drinking as much heavy (whipping) cream as you can handle a little before bed helps. That tends to put on soft fat. Rather than half n half or whole milk, which adds more protein and might add muscle.
Can you do this? Yes. Will it work? Probably.
But the trade-off of over-reliance on heavy cream to gain is the increased risk of heart disease.
Heavy cream is high in saturated fat. This is the fat that tends to encourage subcutaneous fat. However, diets high in saturated fat have long been linked to increased risks of heart disease. Your best bet is to use heavy cream as a calorie supplement and get the bulk of your calories from other sources.