It was so hard to hold back, she had let herself get so absorbed in her pleasure and now that he told her not to she was trying so hard knowing that the punishment would be so much more severe then the wait, she felt him smack her ass but it was secondary to her concentration but finally she felt him bury himself inside and cum, filling her with his juices and the moment he said she could cum she let out a deafening scream of pleasure, her body rattling the metal spreader bar and twitching uncontrollably as he pulled out, his cum dripping to the floor from her pussy, finally she simply hung there, conscious but utterly dead to the world, her head fallen forward and drool dripping onto the floor beside the small pool of cum from her legs.
"Yes master..." Maddie answered and pushed herself to her feet with Emily's help, her legs still wobbly but with Emily's help she would accomplish the task. "We will take care of it master." She smiled at him, this whole session almost breaking her, the girls undid the spreader bar first, Kristen's feet drifting together slightly as her legs closed in a moment where they didn't think they undid the rope holding her hands without holding her and they both winced as Kristen hit the floor like a sack of spuds. "Oh my god Kristen!" They both rushed to the floor to check on her, she seemed fine, still awake and out of it. "Sorry sweetie." The two picked her up, leaning more on Emily then Maddie and took her to the bathroom.
Emily was glad that she escaped unmolested knowing that if she was touched she may well break, her body still barely holding itself together.