Why do fat females like Tall slim clean cut guys?

And I'm talking about the tall slim males who are clean cut dudes with style and masculinity not the nerdy kind. This question isn't meant to sound rude or anything like that but I've notice this many times over the years in my expirence and in the expirence of a few other guys that I know. I know it's like that with many fat males too, but it's def. more common with females especially from what I've came across. What is thier mindset? Most of the time I like to be left alone by people in general so it's annoying when it happens.