A crotch rope is a specific rope formation and knot sequence used in rope bondage. It involves a length of rope that starts from a submissive's waist,
To apply a crotch rope, the "rigger" or Dominant starts with a reverse tension single column tie around their submissive’s waist. They wrap the rope around the waist at least two times, then make a loop and a half hitch to lock off the tension and prevent excessive tightening. They then move the rope down between their submissive’s legs.
The dominant may create a tight line between the legs or a split line that runs on either side of the genitals. A tight line directly stimulates the genitals while the split line can leave them exposed for play. Crotch ropes are more often used on vulva-havers, who may have the crotch rope woven between their labia. However, a crotch rope is suitable for a submissive with a penis too.
Differing pressure in tying the rope can produce various stimulation results. The pressure that a rigger uses to tie a crotch rope depends on their goal. They may tie the crotch rope tightly, so the pressure causes pain, or more loosely so the friction from the rope causes pleasure.
While a crotch rope is usually made from traditional rope, alternative materials such as harnesses, straps, and webbing can also be used. Dominants should be aware of how the materials they use feel against the skin to ensure they don’t cause any damage.
Types of a rope also play a factor in the rigger's goal for using a crotch rope. Different types of ropes offer different sensations and experiences to a crotch rope. Cotton ropes feel soft against the skin, but they can create a lot of friction. Nylon and synthetic ropes are also good options. Their smooth surface allows firmer ties that some people may enjoy. Silk is another option for a sensual crotch rope. Jute and hemp ropes are readily available, high friction alternatives, but you should wash them before use and be mindful of rashes and rope burns that can result.