Failing that you can always try the classic "magic watch" line.
Prolly bindun but I am too lazy to trawl through all the pages. Apologies if repeating.

M "Hey baby, check out my watch, you like it?" "It's a magic watch you know"

F "Oh yeah, why's it magic?"

M "It can tell me things about a person that I wouldn't otherwise be able to tell... for example it's telling me right now that you're not wearing any knickers!"

F "Oh yeah, well that's where you're wrong, cos I am wearing knickers"

M "Damn, must be 15 minutes fast"
( JebediahSpringfield, Mon 14 Dec 2009, 11:38, 2 replies)

Also the classic
Wet your finger and prod her shoulder before saying "Let's get you out of those wet clothes".

If none of those work and home time's fast approaching, I suggest the classic "I bet you 50p I can make your breasts move without touching them" Followed by standing near them, staring at them for a few seconds, then reaching in and giving em a good old wobble with both hands before remarking "best 50p I ever spent!"
( JebediahSpringfield, Mon 14 Dec 2009, 11:41, closed)

This man has never had sex with a woman.

( Amorous Badger NAKED BEA ARTHUR PHOTOS 4U, Tue 15 Dec 2009, 7:19, closed)