A great way to stimulate the senses is to vary the temperature. I don’t just mean a twist of the thermostat; there are lots of ways to enjoy heat as well as cold. Next time you’re performing oral sex on your
partner, have a glass of cold water ready and swoosh some around in your mouth before going down. Better yet, keep an ice cube between your lips!
If you’re playing with your toys, dip the ones made of glass, steel, or 100% silicone in either warm or cold water and the toys will retain the heat or cold while you play. Make sure your toy is totally waterproof before doing this!