I've never had an orgasm and am experimenting with a rabbit vibrator. I love it, but whenever it feels like I might be getting somewhere near climaxing, I can't help but pull the vibrator away. What's happening, and how can I keep going?

As you approach orgasm the stimulation is getting too intense and you are getting too tense. You need to relax into the orgasm. So slow it down and allow your body to sink into the sensation rather than tensing up. As the pleasure grows, but before you need to pull away, slow down the vibrations. Breathe deeply and smoothly, allow yourself to make any noise that arises naturally, and allow your body to writhe or undulate freely. Also experiment with changing to a pulse rather than a constant vibration. You might also find that switching to your fingers at that point works well. And allow yourself to fantasize - keep your stimulation at a constant level and let fantasies of Johnny Depp having his wicked way with you on the deck of the Black Pearl (or whatever turns you on, that’s one of mine) bring you to orgasm.