I've used several water based. For sex with my wife, I'm not crazy about them due to the sticky feeling as they're drying out. When I'm playing alone I like to use a large plug and Wet Platinum works well but not as good as plain crisco. Not sure if that's a good idea or not, though. I once seen a comment somewhere that crisco shouldn't be used due to "trapping" feces. Anyone else heard of this or is this just a myth?