Janet found herself nodding wordlessly.

Tracy reached down and grabbed Janet’s leash, pulling it tight so the collar made Janet jerk and her breathing grew laboured. He tugged it tighter and she couldn’t breath. Then he released it and she gasped a breath.

“Don’t forget to breath little girl,” he advised her.

The cock pounded mercilessly in her hot, wet cunt and she could do nothing but enjoy the sensation. Being so helpless and without control was so contrary to her character yet it was a turn on. That her role had been taken by her former wife and she was now the one being dominated, fucked doggy style in collar and restraints. She felt her orgasm building as her master mercilessly pounded her.

The called buckled around her throat was pulled taut, applying pressure to her throat as he leaned back, pulling on the leash to ride her.

Janet gasped, eyes wide in surprise, but with the collar so tight there was no air to suck back into her lungs, or at least nowhere near enough. It was hard to concentrate as her weak body instinctively tried to arch up from the bed to relieve the pressure. Of course with her arms sleeved she could do nothing of the sort. Tracy held the tiny woman gently but firmly in place to ensure, quite sweetly, that there would be no escape.

With her newfound submissiveness she didn't want escape. She had to trust Tracy, vindictive Tracy who had emasculated her and was taking her. She groaned breathlessly, nostrils flaring and twitching as her diminutive body sought the breath that she for her lungs. Master rode her cunt and pulled the leash tighter, never quite completely cutting off her meagre air supply for more than an instant. It was all a tease, him toying with her to discover how aroused he could make his pet as he thrust his new cock into her soaked pussy over and over.

“I’m sorry slut. Did you say something?” He asked.

She couldn't have spoken if she tried as he stole her breath and reached under her to play with her big breasts and rock hard niplles,

She struggled and tried to gasp in breath to no avail. She was too weak. Too lost in the moment. He loosened his grasp and she shuddered a small gasping breath, gulping in air. Then the pressure returned. Her need rose again and she twisted and writhed, eyes rolling into the back of her skull as Tracy laughed recklessly, pushing further than he had ever imagined, not even in his wildest dreams. Janet felt the pressure building and building until she could do nothing but release it.

"Cum for me slut!"

And, as her lungs burned, Janet cried out, eyes wide and bulging as she came, milking the cock inside her needy, twitching pussy. Tracy groaned deep in the back of his throat as his cock thrust deep into her, his grip on the leash loosening just enough to allow the girl to take in short, shallow, panting breaths, just enough to let her orgasm roll through her.

Little gasps and cries escaped her mouth as he continued, gripping her slim hips and thrusting into her. She felt his cock throb and pulse, spurting his seed into her womb. He kept thrusting and her vision stated to swim. He was no longer preventing her from breathing. Her orgasm grew even more intense as she fought off the effects of asphyxiation.