Tongue vibrators put a licking motion under a silicone pad. The surface flicks or rolls rather than just buzzing in place. Aimed at the clitoris or nipples, it can land closer to oral sex than a bullet does, with the obvious limit that it will not read your reactions.

The moving bit should be soft. Hard plastic tongues feel like being tapped by a spoon. A flexible neck helps you keep contact without hovering your wrist at an odd angle. These motors are small and can overheat if pressed into a pillow on high for a long time.

Lube changes everything. A dry tongue pad skips. A wet one slurs into a pleasant mess. Wash under the pad if it peels back. Sugar from some lubes left under a flap will smell like a forgotten gym towel.

Aim

• Hold still and let the pad move before you start drawing circles.
• Lower settings often feel more like a tongue than the highest flick.
• Replace pads that tear.
• Keep hair out of the hinge.