"Ahem,
I will hog tie you and pin you to the floor, then I shall bite your neck in till you bleed a bit, then I will screw you and make sure your sore by morning, and whimpering and begging for more..."
Wonderful!
And don't forget to nip at their necks, or ears, that is a big turn on for a lot of people, and if your wanting to cause a lot of pain, try a tazer, or a shock collar. Really gets the job done.