I have never been able to cum from vaginal intercourse - clitoral is not problem! - and want to get my first penetrating vibrator to play around with and see if it's just my body, or just the guys I've slept with. Suggestions? The only previous vibrators I've owned were for clitoral use only - no penetration. I love my bullet because of its intensity and think I need something equally intense for internal stimulation. Suggestions welcome!