I'm pretty slim in SL. I enjoy being petite, something I will probably never be in my physical life. I think my shape is fairly proportionate, or at least as close as you can get with the avatar sliders. I often think my rear end is even a little too big for my frame, although I like it.
Of course, then sometimes I teleport in somewhere and I realize I'm not nearly as curvy as I thought I was.
Ladies, really. Rock the big girl shape. LOVE your curves. But can you please resize your shoes to fit your legs? 250 pounds of woman cannot teeter around on size 5 feet with 6 inch stiletto heels. I am a BIG GIRL in my physical life. I KNOW these things!
Just trying to save you years of pain.