When I took Daddy’s math class I figured I would be able to pull off some easy marks. After I had failed my first two exams it was suggested that I stay after school for extra study. I was reading the problem out loud when suddenly Daddy pulled out his cock and flopped it onto my book. I was so stunned that I think I even tried to continue reading that damned problem. Next thing I know is I hear Daddy saying that any girl who can’t do a basic math problem had better learn a new skill such as sucking cock or learning how to be sexy on a stripper pole. As you can see I decided to give cock sucking a try.