It depends on the lady and the mood:
Edgy Hottie: F'ck you like an Animal - NIN (Awesome memories!)
Classy Romance: Jazz and R&B (Boney James, Kenny G, etc)
Dance/Techno: Dirty Vegas, Pucifier, Slave For You - Britney Spears
Rock: Kashmir!!, When the Levy Breaks!! - Zepplin; Rock Candy - Montrose (Sammy Hagar); Now you're messin with a sonnova bitch! - Nazareth (sync your thrusts in time with the cowbell, your GF will remember you Foreva'.....)