Hi i am planning a scene this weekend that will involve a long period of bondage for my sub, throughout this i want to have her labia spread/pulled open and clipped/attached to her thighs, the last time i tried this was using clothspins, with a small bit of chain on each so that i could tie off the chain against her thighs, it was ok but the pins are a little bit to intense for protracted use, anyone got any ideas of anything that can be clipped to her lips as it were but is a little wider perhaps with enough grip to hold on under duress but relatively comfortable, im a little stumped on this one......