You’re my student, but I want you
After Pepper leaves Tony, he has to distract himself. He becomes a guest lecturer in a high school, which happens to be where the young, way too cute Peter Parker attends. His interest grows as he keeps coming back to teach at the school. Before he knows it, he’s become completely smitten with his student.
He tries hard not to, but he ultimately gives in.
[ You can also read it here on AO3 ]