The sexual response cycle is often a model that describes the physiological responses that come about through sexual activity. This product was created by William Masters and Virginia Johnson. In accordance with Masters and Johnson, the human sexual reaction cycle is made up of 4 phases; exhilaration, plateau, orgasm, https://socialbaskets.com/story5480091/the-definitive-guide-to-how-to-choose-a-first-time-vibrator