After a grueling session of potion brewing, Severus offered to accompany his apprentice back to her rooms.
They walked in silence, exhausted from the long day.
At her door, Hermione spoke. "Don't worry Severus. I'm confident the potion will work wonders for the Order."
He nodded gravely and began to leave. Hermione stopped him with a passionate kiss.
Severus pulled back as quickly as he could. "I can't."
"Why not?"
"Minerva's forbidden me."
"What?"
"She's seen me… looking at you and disapproves."
"Well then, we'll have to give her more to disapprove of." Hermione pulled him back into the embrace.