Define pop.

I'm not sure if this is what you are looking for signal, but I have always felt pretty darn potent when listening to certain boy's rocks songs. They aren't really pop, but I think an argument could be made that they really are pretty poppy. Two in particular come to mind.

* Stay Free, by the Clash
* Brickfield Nights, by the Boys.

These songs make me feel young and fearless and inclined to drive fast and believe I am bullet-proof like I was as a 17 year old. Stay free reminds me it's okay to LOVE my friends too.

Wink and Squirt.

"Yasashii Kimochii," by Chara, from the album Junior Sweet, and Billie Holiday's "Speak Low."

Caveat: this isn't stuff I find sexy, but stuff that seems to pop up on these kinds of lists a lot:
Donna Summer/Giorgio Moroder
Jane Birkin/Serge Gainsbourg
'Let's Get it On'
Barry White/Love Unlimited Orchestra
Sade
Luther Vandross
Teddy Pendergrass
Massive Attack (and 'trip-hop' generally, I think)

nsfw

Baby, sweet baby, I wanna feel your breath
Even though you like to flirt with death

Baby, sweet baby, can't get enough
Please come find me and help me get fucked up

I am waiting here for more
I am waiting by your door
I am waiting on your back steps
I am waiting in my car
I am waiting at this bar
I am waiting for your essence
- Lucinda Williams

yup--Donna Summer, and Marvin Gaye and Barry White and people like them, and for me, The Sundays : >

I'm going to have to go with Fresca.

i cant imagine how anyone can put on "lets get it on" in a romantic situation and not just laugh their ass off. Besides being a 40 foot high flaming cliche, it's just not a particularly good song in my opinion.

I guess I would say maybe Tammy Wynette or something. Anything thst sounds sexy without hitting it so on the nose.

I'm a sucker for Sade, though she's not the most potent. Just the most universal.

Hands down:

J'Taime, Moi Non Plus - Serge Gainsbourg

- I mean, c'mon!

Goldfrapp

Let's Get It On has one of my favorite bass grooves of all time on it!

I always thought Love Hate Love by Alice In Chains was sexy and I couple of my female friends did too.