Ginny headed down to the dungeons, where she would have to finish the rest of her reverse potion for Snape's class. "Ok, I've got to get this, that, oh and some of those," she said, as she grabbed some potions and herbs from the nearby cabinet. "Ok. Gotta concentrate or I'll fail this class for sure," she thought to herself.

Ginny took an empty caldron, and started filling it with some of the ingredients. Suddenly she heard a familiar voice calling, "Who's down there?" She turned around only to see that it was Hermonie. "Ginny? What are you doing down here?"

"I'm working on my reverse potion for Snape's class. What about you?" she asked, still pouring large amounts of potions.

"I was getting my spell book. I thought I left it down here…do you need some help? I aced that potion last year."

"No. I'm fine."

"Well, you don't look it. I don't think you should be adding all the potions together like that…here, let me help," and with that, she took the vial out of Ginny's hand and measured out the right amount and mixed it in the caldron. "Ginny this is all wrong. It shouldn't be green, it should be purple. Now if you just take this, and-"

"Stop! I know what I'm doing. If you undo what I just did, I'll have to do it all over again," said Ginny. She grabbed some herbs and started pouring them into the caldron.

"No that's wrong! No! Stop!" shouted Hermonie, as she tried to pull it away from Ginny.

"I know what I'm doing!" yelled Ginny.

"No you don't!"

"Yes I do! No! Let go!"

Suddenly, the potion fell to the ground, and there was cloud of dark green smoke. They both coughed as they breathed in the smoke. "Now look what you did!" said Ginny, as she picked up the empty caldron.

"Well, I was only trying to help," said Hermonie. She bent down next to Ginny and helped her lift the caldron.

"Hermonie? Why do you always do this? I know you mean well, and you're only trying to help, but please. Stay out of it."

"Fine. If you don't want my help, that's ok. But you're only hurting yourself. Ginny, this reverse potion was your ticket to getting an O in Snape's class. Without it, you'll fail."

"Well thanks to you, I'll be getting a D. Thanks a lot Hermonie," and with that, Ginny turned her heal, and walked away. "Now I'll have to pull another all-nighter if I want to pass this class," she thought to herself.

She went to bed and fell right to sleep.

The next morning when Ginny woke up, she felt slightly taller than usual. "I must be having a growth spurt," she thought to herself. She rubbed the back of her head. "Wow, and my hair's getting a lot more bushy too." Ginny walked over to the mirror, but as she looked back in the mirror, she gave a loud scream. She cupped her hands over her mouth as she stared at not herself, but Hermonie's reflection in the mirror. She quickly turned around as she came face to face with her own body; "What's going on?" she said as she shook in horror.

"I don't know. It looks like we've somehow managed to switch places or something," said Hermonie, who was now in Ginny's body.

"So let me get this straight…I'm you, and you're me? How could they've happened?"

"That's how it appers," said Hermoie breathlessly.

"What are we going to do? I can't go out looking like this?"

"Excuse me?" said Hermonie, giving Ginny a look of discust.

"You know what I mean. How are we going to explain to everyone that we've managed to switch places over night?"

"Dunno. We'll just have to keep a low profile until I can figure out what's going on, and until than we're just going to have to carry out the rest of the day acting as the other one would. Does that make any sense?"

"I guess so. But how am I going to survive through all of your classes? You're way ahead of me," said Ginny.

"Just stick with Harry and Ron, and remember, you can't act like yourself, or else everyone will know; act…like me, and I'll have to act…um…like you."

"Easier said then done," said Ginny.

The two of them finished getting dressed, and walked down to the great hall for breakfast. "Ok. Sit next to Harry and Ron. That should be a start. Fallow them throughout the day. They're in most of my classes anyway," explained Hermonie.

Ginny did as she was told, and Hermonie sat with Ginny's friends. "Hey Ginny," said Jackie, who was Ginny's best friends.

"Hi Jackie," replied Hermonie.

"So? Are you going to met up with him tonight or not?"

"Met up with who?"

"You know. Draco Malfoy."

"Malfoy?" said Hermonie puzzled. "Why on earth would I want to met up with him?"

"Duh. Because you're going out with him."

"Ginny," Hermonie said under her breath.

"What's that?" asked Jackie, as she gobbled down some toast.

"Nothing…I'll be right back."

She left the table, walked up to Ginny and whispered, "We've got to talk…now." She pulled her by the arm, and out of the great hall. "What's going on?" asked Ginny.

"That's excatally what I was going to ask you. Why didn't you tell me you were going out with Malfoy? Now I have to pretend to be his girlfriend!"

"Oh, I'm sorry Hermonie. I didn't want anyone to know. You know how my brothers feel about him. And as far as being his girlfriend goes, I'm not expecting you to kiss him or anything, but you have to met up with him tonight. If you don't he'll think I don't like him anymore."

There was a moment of silence when Hermonie said, "Fine. But you owe me big time."

"Thank you! And I promise, today in potions, I'll somehow try to figure out how to fix this…oh wait. I'm not in that class anymore, I'm in your class," said Ginny.

"Don't worry. I'll figure it out for you. But if I don't we'll have to go straight to Madam Profrey."

The two of them set off for the other one's class, where they would start the day playing as each other.

A/N: Sorry if this gets kinda confusing. Just tell me and I'll fix it.