But does she have his?

...Karyn. He stood there for a second, staring, then quickly rushed back to his room and grabbed his phone, dialling her number. "Jon?" mumbled Karyn, half-asleep "What's wrong?" "Karyn, you need to go check your reflection quickly," he said, hoping that the un-Karynlike voice on the other end meant that she had his head. "Why?" she sighed, the rustling of sheets telling Jon that she was getting up. "And what's wrong with your voice? It sounds softer than normal." There was the sound of her door opening. "I...I'm not sure," he replied, hearing her open the bathroom door and flick the switch. He cringed, waiting for what happened next. "Jon!" gasped Karyn, "What have you done? Why do I have the head of..."