There was a good comment on an earlier post, and both it and my reply are worth reading, take a look:
http://www.analsextips.net/how-to-use-sexual-lubrication-for-anal-sex.html
I’m always happy to respond to questions and comments, even if I haven’t posted anything lately, comments will be emailed to me, and I’ll try to get back with a reply in a day or two.