When it comes to lube, it’s tough to slip up (get it?)! Plus, it makes sex more comfortable, especially if you’re not as wet as you want to be—anything from hormonal changes to stress can cause dryness down there, says Aviva Romm, MD, who specializes in family medicine and obstetrics—or if he finishes too fast because of too much friction. Start by rubbing a small amount—a teaspoon or so—in your hands. From there, you could touch yourself or give him an HJ, then move right to the main event. Important: If you’re using lube over a condom, never use oil-based formulas, which erode latex.