'This creates a consistency that is thicker and more 'buttery' than water-based lubes. 'Silicone lube is one of the best lubes for anal because it contains dimethicone, dimethiconol, and cyclomethicone,' she explains. Unlike the vagina, the anus doesn't self-lubricate when you're turned on, which makes it difficult and painful to insert anything-from a pinky finger to a penis-without some extra help.īut which lube works best for anal sex? There are sooo many different personal lubricant products on the market, but when it comes to anal sex, you want to use thicker lube that doesn't require constant reapplication, explains Alicia Sinclair, founder of sex toy brand b-Vibe. Lube is great for taking the friction out of all kinds of sex, but when it comes to anal sex, lube is absolutely essential.