Materials and texture on skin

Fabric, fur, or a surface run over skin for how it feels rather than what it hides.

Why people do it

Skin that has spent an evening under rope, an implement or a blindfold reads material completely differently, and some people are wired for that channel far more than for pain. Fur, silk, denim and a wet cloth are four different sensations before anything else has happened.

Smallest way in

Three things from around the house with different surfaces, run over the inner forearm with the eyes shut, and say which is which. That is the whole first evening.

What to watch

Check for allergies before anything latex or wool touches skin, and keep anything scratchy off broken skin or fresh marks. Nothing here needs to be bought — the softest and roughest things in the house are already the two ends of the range.

In the planner

10 different things carry this tag, and switching it off removes every one of them. The mildest of them sits at easy.