[ycoldwater]

Try this:

Start with the temperature warm and wash your hair and face. Use the shower jet to edge and get really close to an orgasm. Then turn the water as cold and powerful as it will go and rinse yourself all over (including hair and face) for 1 minute. Set the temperature back to warm and warm up. Shave wherever you normally do and then edge again with the shower. Then one more minute of cold as before. Make sure you spray all over, including armpits. Warm up again then switch off the water. Use your washcloth to thoroughly scrub your body, covering yourself in a thick layer of lather neck to toe. Scrub your nipples and pussy too. You might need to wet it more for enough lather. Now run your hands all over yourself and pinch your nipples. Don’t touch your pussy until you have felt every other part of yourself. Then you can use your fingers to give yourself an orgasm. BUT the moment you climax you must rinse all the soap off with cold water. Once you are properly rinsed dry off, finishing your shower cold.

Another one for early morning: sleep naked and play with yourself when you wake until you are really close. Then go straight to the bathroom and take a 3 minute cold shower.