"What the hell are you looking at?" her brother asked as she froze in front of him. Suddenly she couldn't help herself and rushed towards him. The teen didn't know what to think as his sister began giving him a french kiss.
"Stop! You're sick!" he shouted trying to push her off, but then suddenly something began to happen to Jennifer.
A pain came over her as she reached down for her crotch. Her hands grasping as she felt a cock and balls beginning to form.
What the hell? she thought, but her need to have sex with her brother was too great and she lunged back at him...