(Though actually, on breasts, I've heard that it's due to the resemblance to the buttocks, and that evolutionarily speaking that's why humans evolved to have them; because it reminds the primal part of our brain of a woman bending over and "presenting" which is pretty much a universal sign in the ****** kingdom for it bein' time to get it on... and thus something which would provoke arousal... which actually would explain both boobs and butts...)
I've never bought into that. If a guy was well into tits because they reminded him of a butt, then surely they'd be more into butts themselves? Yet there are plenty of guys that are full-on booby men.
Or so I'm told.
