What Am I?

What am I? I am a common object enjoyed by both sexes, normally about 8 inches long, with little hairs on one end, and a hole on the other. For most of the day I am laying down, but I am ready for instant action. When in use, I move back and forth and in 'n' out a warm, moist hole. When the work is finally done, a white, slushy, sticky mush is left behind, and I return to my original position. Cleaning is usually done after I am. What am I? Why, I am your very own...Toothbrush! What were you thinking, you pervert?

That was my first thought when it said,"little hairs on one end", really. But the hole on the other end is weird. I've never seen a toothbrush with a hole.