I came across a few of my step daughters (adult - late twenties) anal toys and I really had no interest there previously. I went out and purchase a slender one... I am just beginning (at 60+) to enjoy this.....though I have only used them privately three or four times, it kinda leaves me in a dreamy state. How long would you suggest a beginner leave them in? My first time was only 40 minutes or so....