Silicone lube isn't as popular as the water-based variety, but we're not sure why! It's silky smooth, long-lasting, and condom-safe. It can also be used in water. Shower, anyone? Just keep in mind that it's not compatible with silicone sex toys and clean-up is slightly more involved. But chances are, lube won't be the only thing you're cleaning up after a steamy sex session.