Beginning of the video, please show quickly the process of putting on legcuffs on her, and show walking slowly to bed with her shackled feet. This can be either POV or 3rd person. Cuffs do not have to be too tight, can dangle around her ankles a bit.
Mouth-fucking through a footjob. (this is third person view) ideally you can also see the shackles.
Chain hang loose off the edge of the bed freely being foot fucked. She uses her feet to make him cum and then uses her feet to clean up the cum and rub her feet together.