The Tutor

Something odd was happening. Sorority girls across campus were "accidentally" sending nude photos to their tutor. After they did so, they realized what they did and begged him not to share the photos. They would so anything he wanted if he did not share. Each girl would have never thought out sending nudes to anyone, including their boyfriends before now, and each was freaking out, though each found herself growing horny thinking about her tutor seeing her nude.

Who is he, and how did this happen, and why?