"Enter!" a deep voice said when Z knocked on Snape's door. She entered and sat down, grinning.
"So," said Snape, scowling, "you think it funny to turn up half an hour late for your detention, grinning?" Z feigned thought for a moment before answering. Snape looked taken aback. He stroked his chin and stared at her. He knew that she was a trouble maker.
"You will be writing lines for me tonight," Snape said, his eyebrow raised, "on the blackboard." Z picked up the chalk and waited for him to tell her what to write.
"I want," Snape said, quietly, "you to write 'I must not be cheeky or rude!' Go!" Z picked up the chalk and began to write. Suddenly, a thought popped into Z's head. She began to draw Snape perfectly, trying not to giggle. She drew tiny love hearts with the message 'meet me in the room of requirements at nine thirty, my love!' Without looking up Snape told her to go. Z did as she was told, giggling. Just wait till you see that, Snape, Z thought.
Snape stood staring at the drawing.
"That cheeky, good-for-nothing, cow!" he roared. He would have to pay her back, somehow, somewhere. He thought for a moment before coming to a brilliant plant.
Z was just dropping off to sleep when a bucket of ice-cold water was dumped on her. Shivering and screaming, she tore down the hall to Snape's office. She burst through the door, effing and blinding. Snape took one look at her in her see through shirt and boxer shorts with her hair hanging all scraggly and – I swear I'm not messing with you – laughed. Yes, my friends, he laughed.
"You fff-"
"Flabbergasted! That's what I am!" Snape roared laughing so hard he almost wet himself. Z began to sob as the pain hit her chest. She was drowning in cold. Her fingers were numb and she couldn't feel her limbs. Snape had suddenly stopped laughing and had come over to embrace her. A shocked Z tried to push him away, but he held on. As she looked up Snape planted a warm, cosy kiss on her lips.
"I love, Ziva Johnson," he said, "I always have." And with that he scooped her up in his arms and kissed her so hard, she thought she would snap.
The end