Heavy bondage/suspension

As touched on, suspending someone fully in rope or metal bondage, inverted positions, or very stringent bondage (elbows together, hogties for long periods). The risk of nerve damage and circulation cut-off rises with time and tightness. With suspension, falls are a concern. Always have safety shears to cut rope if needed, use proper chest harness to support body weight, and don’t leave a bound person unattended, especially if gagged or inverted. These advanced ties can be beautiful and an incredible endorphin rush for the bound person (some go into “sub space” deeply), but should be done only after mastering basic bondage and ideally learning from a rigger. (In all these edge cases, never do them without both partners explicitly saying yes, and ideally have a mentor or do extensive research. These are mentioned for completeness of the sexual possibilities catalog, but they are not necessary for a fulfilling sex life – they are niche explorations.)