I really like comfortable bondage positions: ways to restrain my patient, without her feeling discomfort after some minutes of play. I use spreader bars, and rope bondage, with rope cuffs on ankles and thighs to restrain her to a massage table, used as a medical exam table.
I like cunt play and cunt torture, using a self made needle probe vibrator, made out of an electric toothbrush. My girlfriend loves it. Probing directly on the clit, or around requires me to restrain her very well, because after excitement she cannot keep her hips still by herself.
I really liked the suggestion of HoldNUrButt, and I am definitely going to try that one next time. Another one to try is to spread her ankles using a spreader bar, and fix de bar on the wall behind the table, lifting her legs above her head. This way, full access of vagina and anal area are available, great for instertion and vibrator play.
Of course, bondage requires a lot of trust, but it is very exciting and beautiful.