Being a cross dresser I envy you ladies with generous bottoms and hips, but seriously, really seriously, I hope you can enjoy yourself as you are. I'ms sure your other half does (there's been a bit in the papers recently about the reasons women have big boobs and hips - it shows you store the fat that feeds the children with the big brains that we've evolved to have).
If only we had a good word for fat instead of all the weaselly ones you keep finding on cosmetic packs (stand up and be counted, you lipids!). Mrs. PInk's bum looks good enough to eat and I worship it!
But obviously you want to look and feel sexy. Mrs Pink likes the bra-sized baby-doll/chemises you sometimes see, as thay make the most of her boobs and cover up, in her case, her post-caesarian tummy bulge, but in your case would sit over your hips and, with any luck, 'smooth the transition' from your top half to your bottom half.
I have to say that they're not that easy to find, but I've dug up three for the Mrs.. Having sized cups makes a big difference to us as we're both quite particular in the boob department.