"Lay down, Baby Sister," he commanded her.

"What? Bobby? What are you gonna do? We can't have sex!" she protested.

"Trust me. Just lay down," he told her as he sat up. "I've got to pee. I will be right back." He took the wads of toilet paper and the roll back to the bathroom as he went.

When he came back, Amber was laying on the bed in anticipation. It was beginning to get dark outside, so he turned a bedside lamp on. His sister, still dressed only in her bikini bottom, looked so delicious to him.

He got on his knees at the foot of the bed and...