Liz's Master did not like it when she asked Him to fuck her. He controlled when and where she would be fucked. She had been asking Him to fuck her so he punished her by having her suck his cock without any sex. If she did as she was told she would receive pleasure. She had to learn not to ask.
One day she received an IM from him to come to him immediately, not to say a word, get on her knees when she got there and suck his hard cock. She went to Him as she always did when He needed her. She got on her knees. His cock was semi hard. She fondled his growing cock while she licked the head. She sucked his balls while she stroked his growing cock. Then he grabbed her hair and stuck his hard cock in her mouth. She had one hand around the base of his cock but he took it away and made her gag. He was very pleased. He fucked her mouth very roughly making her gag several times. She was looking forward to receiving his spunk. She hated it when she gagged, she wanted to be able to take the whole length of his cock without gagging. If only she could control the gagging.
His fucking became faster and rougher. She knew he was soon going to loose his load and she was waiting with anticipation. She enjoyed drinking her Master's cum. She looked up at Him and knew by the look on His face that he was enjoying the sight and the feel. Then she could feel His cum squirting in her mouth. She swallowed as quickly as he filled her mouth. She wouldn't dare spill any of His precious man milk. He was very pleased with her. She got up, licked her lips and left, just as she had been told.