Sexual spanking is always popular, it's one of the most subliminal ways to assert your dominance. Using your hand gets old after a while and that's where the bondage whips come into play - literally!
Some are very stiff and offer brisk unforgettable punishment like the riding crops or if your partner would frown at such a thought you can butter them up with a softer feather tickler or a gentle flailed ended whip. With all the choices for sale you should be able to find the right style that fits with your BDSM needs.
