Hang Her High/FeetBound/HandsBack
With her hands bound you decide that perhaps you should also bind her wrists behind her back. With that thought you walk around behind her.
"Place your hands behind you, palms together and interlace your fingers," you instruct her.
The young woman smiles again and does as you ask. With deft fingers you quickly wrap a rope around her wrists as she holds them away from her back to give you room to work. Once you've finished several wraps around her wrists you start to pull some of the slack from the rope, but not quite all of it.
"Now open your hands." Again she does as she's told, and you finish off the knot, wrapping the loose end between her arms, around the rope puling everything tight and then tie it off.
"Seems like you've done this before. I won't be able to free myself for sure. I won't be able touch myself either, so I hope you play with me." She smiles up at you as you return to stand in front of her.
"Is that an option? I thought I was only allowed to watch" you reply, trying to follow the rules of this experiment, or whatever joke it is.
"Yes, I suppose I should have mentioned that. You may touch my body anyway you like. Both my holes are available to you if you want to fuck my pussy or ass. You can fuck me as hard or soft as you want, but only while I am on the rope."
You stand there and admire this woman bound in front of you. She's looking at you expectantly and then looks at the noose hanging more or less behind you.
You're supposed to hang her, in that noose... can you do it?