I know what your talking about to, I can't get enough of clips with girls doing that, here is a link to a sexy blond making her lovely looking cock dance.
http://www.freepornmpegs.org/maxwell...370/maxm03.mpg
And the link to the page of some more of her if you liked that one.
http://www.freepornmpegs.org/maxwell...370/xlmdn.html