Wise to Mistress Xany's penchant for small sharp shiny instruments Magpie arched as she was pulled over her mistress's lap and almost groaned in relief as her weight was removed from her aching knees.<br/><br/>The rasping sound of the dagger being drawn soon dimmed that relief as the blade flashed into and out of her line of sight as it was toyed with above her exposed flesh. Her now purple mottled breasts stood harshly to attention in their rope bindings, pert and vulnerable.<br/><br/>She swallowed and viewed the room from her upside down position. The male sub was still in the centre, beginning to respond to the administrations being performed upon him, a flash of perception crossed Magpie's mind as she recalled her mistress's earlier displeasure with her sex and wondered if the sudden shift in her mistresses attention had to do with the sub being used in the centre of the room.<br/><br/>Her attention did not stay long on the room however, for it was constantly drawn back to the blade gracing her mistresses delicate fingers and soon to her own arched back as she realised the compromise her aching knees had made with her distorted spine....