It was the opening she wanted. In doing as she wanted, Callie knew she would not be able to talk. With a smile, she quickly took Nadia's cock into her mouth again, and began to push her length deep. Her appetite full of vigor, she pushed her limits and her throat. The pain translated into pleasure. The more bliss that ripped through her body, the more Callie knew she was inflcting damage to her own body. Both desires were so strong, she didn't know which one was taking over, the desire to please Nadia, to show her her own ferocity, or the desire for more pleasure for herself. Nadia's impressive length slowly began to disappear in the tight confines of her throat. Speaking, breathing, these simple functions were now impossible, but Callie was intent on showing her everything she could do.