A clinical fisting with segufix
Nurse Elis runs a very particular clinic, and her anal slut knows the drill the moment the segufix restraints snap tight against the medical bed. Wrists, legs, ankles: pinned down on all four and going nowhere, strapped so snug the only thing left to move is his ass, arched up and exposed for her.
She doesn't rush. Latex gloves on, she warms him up slow, working one finger in, then two, three, four, stretching and training him open. By the time her whole fist presses in and sinks to the wrist, he's stretched wide and taking every inch like a good little patient. Then she can fist non stop, one hand at a time filling his greedy hole.
Dominant medical fetish, segufix bondage, anal training, and a full fisting from beginning to end. Only for the ones who know their place in her clinic.