Beatrix has a student that is very well behaved, but he isnt the

Beatrix has a student that is very well behaved, but he isnt the brightest, and so hes failing her class. She could have let it slip under her radar, but shes heard some rumors that hes packing some serious meat below the belt, so she offers him an extra credit opportunity he cant refuse that leaves her anus sore and mouth inseminated.