"If you keep up with me for two miles," Pammy said, "I'll let you fuck me doggie-style when we get back."

I wasn't concerned about whether or not I could keep up. I was, however, concerned about fucking my niece doggie-style. Teresa and I had tried it once or twice. It had ended in disaster. I couldn't get it where she wanted, how she wanted, and she'd growl and cuss and then be angry for the rest of the night. I really didn't want to disappoint Pammy - but I kept my mouth shut.

My brother's little girl, obviously, had mapped out the path she wanted to take for our...