For safety and compatibility with latex condoms, you should choose either a water-based or silicone-based lubricant. Avoid oil-based lubricants, as they can degrade latex and cause the condom to break. Since you are using it after oral sex, the vaginal environment is more sensitive to irritation or infections from saliva. To maintain wetness safely, the best option is a water-based, glycerin-free, and fragrance-free lubricant. Glycerin can promote yeast growth, so choosing a glycerin-free, pH-balanced formula is gentler on your microbiome. Silicone lubricants are also condom-safe and last longer, but water-based ones are easiest to clean and highly recommended for sensitive skin.