Kirsty is quite heavy and here she is sitting on her slaves shoulders whilst he sits on the bench her weight is making his shoulders and body back and butt ache as she comfortably sits on him you can see his face of pain, half way into the clip she then sits on his shoulders in the bedroom whilst he sits on the floor but this time she is scissoring him as she sits on him, his body is aching under her weight as she scissors his neck with her strong legs. (Clip is 4:02)