How do I achieve these hips? (Photo)

I'm not sure why I find this look appealing, but I do. I'm not sure if its just extra fat that creates a love handle look or what. I've always been on the skinny side and I'm just wondering how to acheive these hips? Do I work out?... I still have pretty wide hips, I just have a hard time keeping and putting on weight. I am 5'3 , 112-118 pounds most of the time. How do I gain weight if this is the only option? any advice is appreciated!