<...As the time passed by, under the woman's fingers the stubble became a real beard, 1 or 2 inches long, thick as a man's..>
"Ahem! I'm sorry, but I got to go. Bye."
After saying these words in a unmistakably manly voice, the once gorgeous-now bearded teacher run out of the class, leaving almost all her (or him?) students absolutely dis-concerned. Almost, but not all. One of them knew exactly what's going on: Jennifer.