Karyn opened the door to find Jon and Zoe, completely nude and having sex like they had done so all their lives. "Jon," Karyn screamed. "What are you doing? Zoe's your sister. How can you do that to her?"
"But I love him," said Zoe as she bucked her hips in time to Jon's thrusting cock. "I've always loved him. I'm tired of pretending otherwise. You don't know what its like for girls like me. To love someome with all your heart and have society say its wrong because he's your brother."
The two lovers suddenly had mutual orgasm and collapsed to the bed, exausted. "She's right," Jon said, unashamed of either his nudity or his incestuous act. "I feel the same way about her and I don't want to have to pretend anymore either. You're my best friend, Karyn, and I love you too. But I just can't deny my feelings for Zoe anymore." Jon pulled Zoe closer to him and kissed her. Zoe blushed and giggled.
Karyn, shocked, picked up the stone and said.
