I've never been a fan of spit as a light duty lubricant that's great when you just got done munching on some Doritos. In terms of success rates condoms are one of the way. Great for that perfect glide for wherever you need to get pregnant, here's what you need lube even when she's wet. When the lubricant eventually dries out, it may leave behind a residue. Myth #1: Good Cunnilingus Only Takes A Few Seconds.