A hot make-out session—especially with the love of your life can bring the heat. Your lips touch and it's an overload of all your senses. Lips are 200 times more sensitive than the tips of your fingers. 

Blood Flow increases to all the good parts and the adrenal glands unleash a wave of adrenaline. The kiss tells the brain to bring on the dopamine, the pleasure chemical. It's similar to the euphoria of a morphine drip. Pain is lessened and every sense is heightened. 

So...what do you want to do next?