Sarah's Mom Screams

Sarah's mom pushed on the door a little. "What's going on in there?" she asked. Jon froze up, unsure of what to say. What came next was the loudest scream he'd ever heard. "Sarah! What are you *doing*?!" she yelled. Sarah immediately stopped kissing Karyn and stared back at her mom, looking as shocked as her mom was. Then she looked at Jon. "Why did you let her in?" she asked, clearly angry at him. Jon had to do something. The situation was already bad, but he didn't want to make it worse. What should he do?