Bum or boobs, both actually I tend to judge on a case by case basis. Some women I find their bum is best attribute others it's boobs. Flat chested with saggy arses illicit sympathy rather than desire, moobs and builders bum and it's run an hide time
I’m absolutely a bum man myself. All the way. The bum has to be especially curvy and large though which is something I really love. Although I love boobs and prefer when they’re big or have a decent size to them on a woman they’re an added bonus to me when a woman already has a curvaceously large bum.