It Was More Than Just Kissing

I started dating my professor last year. It was a secret, of course, the student-professor thing is strictly forbidden at my university. We'd meet in hidden corners and quiet rooms between classes. One night, we ended up alone after everyone else had left for the day. He kissed me, and I let him deepen it. Before long, our clothes were coming off too fast. It felt so wrong but also perfect. Afterwards, I was sick with guilt. I haven't seen him since then, maybe never again. What if someone finds out? I'd lose everything.