Romantic/Sexy/Hot/Insert your own adjective songs

My husband and I make a weekend mountain trip every December. We've been making this trip since before we were married so this year marks the 4th annual. We always make sure we have some sort of hot tub and/or jacuzzi where we stay because that defines relaxation for us.....and it's....well.....romantic....I'll leave it at that. Music adds to this romantic mood so we always make a CD/playlist to listen to. This year I am stuck! I can't find the old cd's we used to use (first year we have MP3 players) and for the life of me, I can't remember what songs we usually include. I tried to Google this topic last night and found myself feeling very.....disturbed...to say the least! (People really listen to "Particle Man" by They Might be Giants for this sort of occassion???)
SO....I need ideas!!! Tell me what you like, what you recommend, what you have on your own special playlist. I don't like cheesy (one I saw was "Up Where We Belong" ewww) or cliche ("Let's Get It On") or dirty ("Freak Me" Silk)
Sultry and sexy is what we want.....("Anytime Anyplace" Janet Jackson...."Feelin' Love" Paula Cole - HOT song if you've never heard it)
Ideas people......keep 'em coming!