What is the sexiest part of a women's body?   Ladies...what is the sexiest part of a man's body?

Ain't nothing like the dirty mind of a beautiful woman.  Even lets less desirable women be more desirable.  

Her brain?

Haha! It goes the other way, buddy! Lolol! But I hear ya.  

ears, nose, mouth, hair, breasts, ass, legs, feet, toes and of course, her kitty. ( yes, and brain

I've fallen in love because of brains... With men I would never dream of even touching. YMMV!

I just love a kind and gentle hearted women  :  ......and an ASS i can bounce a quarter off of   :  0   humm

First off I love blondes.....I love the little peace fuzz (blonde hairs) on a women's lower back to her ass.....it's the tiny, peach fuzz that you can only see in the sunlight.....what a turn on.  Sometimes I'll massage my ladies just to see that peace fuzz and I'll get hard ...

can be the deciding factor if the relationship progresses.

Then ass, legs and tots in that order for me at least. But nothing says fuck me better than a ladies eyes

I can't tell you how many times the initial impression sours as soon as the woman opens her mouth.  On the other hand, there's been times I've just got into a conversation with someone in business, at a coffee shop, in the grocery, whatever.  Not really attracted and then just hit it off.  Some of the worst relationships I've ever had (like my ex) were because of falling in lust at first sight and letting my little brain do the thinking.  Maybe I'm maturing.  S**t.

I'd say the smile, which is a combination of the mouth and eyes.

And I mean it, I'm not being a smart ass. A woman can say come here and duck me with her eyes and the right smile

For a woman
I look at hands, feet and skin.  

Sweetie , the more you post the more I like you .  This could be the being of a great friendship , with benefits of course . xoxoxo.  

I meant, a woman can say come here and fuck me with her eyes and the right smile. I'm not smart enough for my phone.

plus I adore a nice ass

Oh, and great tits, and beautiful eyes, and tight abs, and.........

I typically don't get to see anything till we meet. I get wet when men communicate well and we find common ground before even meeting. It helps if he can talk astrophysics as well. lol!

There is balance, brains, beauty and attitude. All three are very important for sustaining a relationship long term. It is not a matter of extremes for most rational people.  

I figure you're either referring to something like Steenrod's theorem or to small boobs.

or something else. Just curious.

I was exposed to a thesis of categorification of quantum invariants thanks to my ex who has a PHD in math. Good times.

Depends on the girl!

with her bedroom eyes. Once we embrace and share a "nice to see you welcome kiss", then we begin a conversation about the evening and her intelligence shines through.

One woman might be her ass is the sexiest part, another her tits, etc.

I like (in no particular order):

Most women have something that's sexy. Butt, breasts, eyes, lips, legs, personality. The exception who comes to mind immediately is my obnoxious sister-in-law. A 300 pound mass of ugly with a loud mouth.

her smile!

That wonderful mixture of cosmetics, hair care products, and body sprays / perfumes that combine into the most delicious feminine scent.

Yes, brains, eyes, smile, etc... are all great and I enjoy each one.  But from a purely physical standpoint...the swell of her hips.  A well formed waist and a nice flare to the hips tells me I am with a woman, not a girl.