Under the guise of needing help with a paper, I had my teacher come to my house. Once inside, I confessed that what I really needed was her to teach me something else entirely - to masturbate. She was hesitant at first but the promise of extra credit proved too much. I took control, pushing her onto the couch and ripping open her blouse. With her large breasts exposed, I leaned in and began sucking on her nipple while simultaneously undoing my pants. She watched in shock as I pulled out my cock and started stroking it. My movements became more aggressive as I got closer to cumming. Spurred on by my teacher's arousal, I exploded all over her chest. She was left panting and covered in my cum as I finally released her from my perverted lesson.