Seeing someone wearing my top the morning after. No idea why it's hot, but it is.
Other than that... a little bit of bossiness. From a man or a woman, doesn't matter, I just get turned on by it.
Once there was a man with a little too much time on his hands...
A sexy voice and a smile. Although I don't think I can define exactly what makes a voice sexy. Rhythm, pitch, vocabulary all play a role. The smile is much easier to define. It's the badge of confidence, ease, and the ability to look outside the self.
The look in those eyes and that smile
Wow. so many good answers. You people are turning me on immediately.
Also,
a man sliding his hands up under the hem of my skirt
dimples
a soft expletive connoting erotic delight
a lover pressing my hand against the bulge in the front of your pants unexpectedly (not you, creepy bus guy)
men who blush
perfect, gravity-defying breasts
confessions
Sharing sensual fantasies
Being lightly (or not so lightly) bitten on the shoulder or lower neck seems to do it pretty much without fail.
Accents (especially Aussie or Kiwi)
A well-dressed woman with a soft touch who does not hide her intelligence
Sniffing my wifes dirty panties, instant hard on.
My cuck hubby laying out my undies for a meet starts me off
We're kissing and s/he bites my lip or pulls my hair. They run their hand down my back and grab my ass. It's the next day, we're in polite company and they drop a double entendre only we would recognise, then look into my eyes with a fire that says again.
Once there was a man with a little too much time on his hands...
My wife walking into the room, saying nothing, kneels in front of me, takes out my cock and starts sucking it. Actually, it only happened once, but it was the fastest turn-on I have ever had.
An attractive tall, pale, punk that's dressed well w/ shiny blk Dr. Martens. Oh, and he must be cocky and be able to back up that cockiness.
A woman fully confident and knows what she wants.
Guys who I can picture looking damn sexy in a suit but also in a pair of destroyed jeans with the completely faded shirt that has seen better times.
Those who ooze fearlessness and love of freedom. It is in the way those men act or move, in their whole behavior...
One glance of them and I start to cream in my knickers!
Generally photos of dat bare ass???
That look that says yes. Let's do it.
Four years in and counting, and I am still addicted to the way she smiles at me. Thrills me every time, like I was seeing it for the first time.
a lot of things but Intelligence and a great sense of humour tops the list.
I'd try to think of something clever and witty here, but my answer is bare legs in a flippy miniskirt.
Smirks and intelligence. Weirdly eye colour as well. If I'm particularly near to someone and we make eye contact and they have hazel eyes I'm done for. When I was 17/18 my fuck buddy would be sat across from the table from me and we never once spoke at sixth-form in the two years of being in the same class. Occasionally he'd give me eye contact and I knew that was my cue he wanted to fuck. I think that's when I acquired that particular, weird behaviour. Subconsciously trained to get aroused from direct eye contact.