Strap your slave into this SM Slave Tape M-Letter Open Thighs Harness and they will be at your complete mercy, with their legs and thighs spread and their entire front exposed to your attention. Don't worry, though. The belt is soft and attaches via Velcro-style strips, so the harness is still suitable for all levels including beginners.
The SM Slave Tape M-Letter Open Thighs Harness features: