No doubt about it, the anus is extremely sensitive due to all those excitable nerve endings. Anal vibrator's stimulation can act as a wonderful intensifier. Since all the following anal vibes have a base on them, they are considered anal-safe.
DO NOT share vibrating butt plug.
DO NOT USE silicone-based lubricants, oils, and creams (suntan lotion or sunscreen, lip care products, essential oils, coconut oil, and edible oils of all types). Otherwise you will ruin the vibrating anal plug.ONLY USE water-based anal lubricant.