Topologist clearly demonstrates the technique for tying two columns (such as two arms or legs) with the Somerville Bowline. He explains how the tie can set the tightness and tension of the binding to safely enable you to play with restraint.

Bondage with Topologist

1. Keeping Ropes Organized During a Scene
2. The Somerville Bowline: Single Column
3. The Somerville Bowline: Double-Column Tie
4. Adding a Handle to Wrist Cuffs
5. Rope Bondage Gravity Boot
6. Simple Partial Suspension for Sex
7. Rope Suspension: Studio Equipment