Academic Threesome.

Lina Shisuta has been flirting with her classmate all semester. She isn't really interested in him, but he is super smart and totally into her. That makes it easy for him to get her lessons for free and even get a little help cheating on the exams. The professor is suspicious and keeps a close eye on them. They think they are being slick, but he catches them passing something during the study session. You demand to see what she was giving him and see their embarrassment when you discover that she is giving him nude photos of herself.