Songs That Make Me Quiver

This was introduced to me by an old boytoy....he's gone but this song still makes me wet. What is it about songs that evoke such emotions? From sadness, to arousal; is it the beat or the words or the entire thing added with your mood? This is just one song ....here are others..let me know which ones make you quiver and drip.
http://www.youtube.com/user/underpaidnurse#grid/user/8C8AF7977562C095