TWO SETS COMBINED:
"Pretty Prof" - Mary Jane Green - It appears one of the grad students had some issues about their grade.
"Sexy Silhouette" - Sabrina Stone - I took most of these pictures as sunlit silhouettes, which made for a nice moody effect. But I realized afterward that maybe you'd like to see some details -- so I manually lightened up a few of the shots so that you can see more of Sabrina. :)