ISO Story - Female, Bondage, Machine, Breath-play

[Epartsman]

Hello,

In search of a story that relates to a female actor who is placed into a machine.
From best recollections:
- She is in a sitting position
- The chair has no seat
- She is bound to the chair
- There is a dildo teasing at her entrance
- There is a mechanism that ratchets and makes the anchor around her neck tighter if she wants penetration
- I believe the ending is her awakening after having passed out.

Thank you in advance for any leads.

Best,