Step-Dad, I need your cock for extra credit (Dillion Harper) taboo handjob

My stepdaughter is a pretty smart one. She's in college now as a pre-med student and is working really hard to get good grades. I stopped in her room the other day to see how she was doing, and was caught a little off guard when I saw her with what appeared to be a very realistic fake penis in her hand! She was sitting on her bed, wearing her big glasses and knee high socks, and in her hand was an obscene looking fake penis that she was using to study male anatomy. She greeted me, and told me she was having trouble with this class and really wanted good grades, but the big fake penis was not really helping her understand how a man's body worked. She had a suggestion for me that really took me by surprise. She said that if I would help her get a good grade, her step-mom would be happy and would never have to know that I helped.