I am a useful tool, commonly found in the range of seven to eight inches long, with a function which is enjoyed by members of both sexes. I am usually found hung, dangling loosely, ready for instant action. I boast a clump of little hairy things at one end and a small hole at the other. In use, I am inserted, almost always willingly, into a warm, fleshy, moist opening where it is thrust in and drawn out again and again, many times in succession, often quickly and accompanied by squirming body movements. Anyone eavesdropping will most surely recognize the rhythmic, pulsing sound resulting from the well-lubricated movements. When finally withdrawn, I leave behind a juicy, frothy, sticky white substance, some of which will need cleaning from the outer surfaces of the opening and some from my long, glistening shaft. After everything is finished and the flowing and cleansing liquids have ceased emanating, I am returned to my freely handing state of rest, ready for yet another bit of action, hopefully reaching a climax two or three times a day. What am I?
I am your toothbrush.