I prefer one called J-lube, it comes in a powder form, so you have to mix it with water, but you can make it as thin or thick as you like it. see http://www.jlube.net/index.htm
thanks to those of you who take this serious and answered with actual products someone could use. very helpful!
The thing i like about coco butter is that unlike ky or astroglide, it doesn't dry out, so ,you don't need to think about adding more all the time & you can just hold her hips & plug away at her ass & not have to stop all the time to add more, plus it has a pleasent aroma
If I'm just having sex, I enjoy vasiline. If I'm being the nasty beast I am, I just spit on my dick, or have her do it. lol real talk!