Susan, you lovely quine, don't let the buggers bring you down.
There is a joy in your heart which shines through your face and that makes you beautiful. So you are not pin thin but you are half the size of me - so you are thin to me. 
Your dancing brings happiness to many. And to me. And that is no mean feat. because I'm a miserable git You make me feel something when you dance. And that is how it should be.