George Weasley woke up on the fourteenth of February only to find his twin already up and about. Fred was bent over his trunk, obviously looking for something. He usually woke up a few minutes later than George, but neither of them was surprised that the situation was reversed that morning. After all, something special was about to happen that day and Fred always woke up earlier on special days.

Fred looked up from his trunk as George got out of bed. They exchanged wicked grins, thinking of what they were about to do, before George started getting ready for the day and Fred continued rummaging in his trunk. Minutes later, Fred finally found what he was looking for and George finished dressing up.

George eyed the small red package his twin was holding. He gave Fred a sarcastic smirk, knowing that the package was a Valentine's gift for Angelina—he had helped pick it out. Fred shrugged casually and put the package in his pocket. Without a word to each other, the twins headed for the door at the same time, leaving their roommates to their sleep.

Just as they had expected, the common room was still empty. It was a Sunday, after all. Everyone was surely going to sleep in, and they had made allowances for those who wouldn't. They headed to the Owlery and gave a letter, and other things besides, to the largest school owl. After that, they went to the kitchens, where they gave instructions to several willing house-elves.

More than half an hour had passed before George and Fred got back to Gryffindor tower. They entered the common room and immediately ran into Angelina and Alicia, who were making their way towards the portrait hole the twins had just clambered through.

"Good morning, girls!" George greeted brightly. He made sure that his voice was loud enough to be irritating on such an early hour.

Angelina and Alicia responded with sleepy half-smiles and half-winces.

"Hey, Angel," Fred greeted in his best Lockhart imitation. Angelina, who detested the nickname, glared at him, though there wasn't really much ice behind it. "Looking forward to today?" he asked, waggling his eyebrows suggestively.

Angelina rolled her eyes, though she clearly looked pleased, and she kissed Fred when he leaned in towards her. George grinned and also leaned in towards her, jocularly puckering his lips. Angelina placed a hand on his chest and pushed him several steps backwards, prompting an appreciative chuckle from Alicia and a snigger from Fred.

"Aw, come on, Anj," whined George. "It's Valentine's Day!"

Fred smacked George on the back of the head with a rolled-up newspaper he seemed to have conjured out of thin air. "Go kiss some other bloke's girl," said Fred mildly.

"Ah, my apologies, brother mine," said George, not sounding the least bit apologetic. "Couldn't help it—you've got such excellent taste in girls."

"What is wrong with you today?" Angelina asked incredulously. "I mean, other than the usual," she added before George could reply.

"Sorry 'bout him, Anj," said Fred. He put on a tragic expression and lightly patted George on the shoulder. "He must've woken up on the right side of the bed today."

Angelina turned to Fred, looking even more incredulous. She opened her mouth to say something but closed it after a moment, apparently realizing that it wasn't worth it. She rolled her eyes and instead said, "We're going down to breakfast, you two coming?"

"We'll catch up, Anj," said Fred, smiling at her.

His voice carried none of his usual mischievous inflection and he sounded almost tender. Angelina smiled back at him with a soft expression on her face. George felt slightly jealous and at the same time felt an urge to snicker at Fred and his pretty girlfriend.

"Things to do, you know," George explained enigmatically to Angelina and Alicia.

The girls raised their eyebrows suspiciously at George and Fred. The twins immediately put on their best innocent face.

"Alright, see you at the Great Hall," Angelina said after a moment. She and Alicia turned on their heels and clambered out of the portrait hole.

George and Fred watched them go then strode across the common room towards a group of chairs by the fireplace. They sat and waited, conjuring small paper broomsticks that dive-bombed on people's heads.

They had only been waiting for a few minutes (and hit more than a dozen people with their paper broomsticks), when Hermione Granger descended the girls' staircase. Unlike the other girls in the common room, who had all been giggling nonstop (George supposed it was because of the day), Hermione made her way to a seat by the window and, of course, began reading the book she brought with her. George and Fred waved at her in greeting and then turned back to their paper broomsticks. She was not their quarry. After a while, Lee came down the stairs. George and Fred bid him to go downstairs without them. He was not their quarry either. A few minutes later, Harry, Ron, and Neville emerged from the boys' dormitories. They immediately approached Hermione and together, the four fourth years headed out of the common room to breakfast. George and Fred waved cheerfully at them but otherwise remained seated. One of them was their quarry—their main quarry, in fact—but they were waiting for the other one.

Finally, Ginny bounded down the girls' staircase, looking like she always did on early mornings—sleepy, a little grumpy, and slightly out of it. She didn't even notice the twins as she crossed the common room and clambered out of the portrait hole, which was all the better for them. They waited for several seconds, and then hurried up after her.

They stealthily followed her until they reached a staircase that went down towards the sixth floor. Ginny took the staircase. George and Fred waited until she was out of sight before taking the shortcut through a nearby tapestry. Less than ten minutes later, they were waiting for her at the entrance hall, snickering gleefully. They stood to one side of the marble staircase, hidden from view to anyone descending it. After several minutes, they saw Ginny walking down the staircase. They waited until she was at the bottommost step before jumping right in front of her.

"Boo!" Fred cried loudly.

Ginny's shoulders jerked involuntarily but to her credit, she betrayed no other signs of surprise. She slowly raised an eyebrow and regarded the twins suspiciously. George almost teared up with pride at his little sister's reaction.

We taught her well, he thought dramatically.

He almost felt guilty about what he and Fred had planned. After all, out of all their siblings, Ginny—their one and only sister—was the most like them. But then, George thought of their other target and how they hadn't gotten him back on that prank he pulled last year, and all feelings of guilt left George.

"Hey, little sis," he greeted with a wide grin.

Ginny scowled at George, who grinned even wider knowing that his 'little' comment had irritated her. "What do you want?" she asked flatly.

"What? Can't brothers greet their little sisters anymore?" Fred asked innocently.

"I am not little," she said defiantly.

"Ah, but you are," said George. And she was.

George and Fred were not afraid of riling her up. One thing they had learned about Ginny was that even though she was grumpy on mornings and got easily annoyed, she was almost always too sleepy to hex them—unless, of course, she was seriously annoyed. They had long ago figured out the exact point at which to annoy her on mornings and had actually set a record of not getting hexed by her for two straight years (not counting other times of the day, of course).

Ginny rolled her eyes and pushed her way past George and Fred, obviously too sleepy to deal with them. They followed her with wide grins on their faces.

"Great day, isn't it?" Fred began as they started to walk across the entrance hall. He shared a conspiratorial glance with George over Ginny's head.

"I've always loved Valentine's Day," George piped up, taking on the familiar rhythm of alternating sentences with his twin.

"Love is in the air," Fred said with a dramatic sigh. Ginny rolled her eyes again.

"Did you remember to get something for Angelina, Fred?" George asked pointedly. They were already halfway between the entrance to the Great Hall and the marble staircase.

"Of course!" said Fred in a mock-offended tone. "You insult me, brother dearest."

"Ah, sorry, sorry," said George. "What about you, Gin?" he asked. They were only a few steps away from the Great Hall. Ginny scrunched up her nose, but didn't say anything. "You got something for a special someone?"

"Say," Fred began as they stepped into the Great Hall, "Someone with eyes as green as a fresh pickled toad?"

And together, George and Fred hurried towards the Gryffindor table, leaving Ginny standing by the entrance to the Great Hall, looking stunned, embarrassed, and indignant all at the same time.

It was several minutes later when Ginny finally entered the Great Hall. George could not quite keep the gleeful snicker from escaping his lips as he looked over at his little sister. She had taken a seat at the Ravenclaw table with her friend Luna Lovegood, but she did not appear to be listening to a word the blonde girl was saying. She was staring back at George. Her expression, which alternated between murderous and mortified at regular intervals, entertained him to no end. He smirked widely at her while Fred, who was sitting beside him, gave a smug little wave.

"What are you two up to?" asked Angelina. She was sitting across George and Fred. Alicia, who was sitting beside her, looked curiously at the twins.

"What makes you think we're up to something?" Fred asked innocently. Lee, who was sitting on his other side, gave a sarcastic snort.

"You're always up to something," replied Angelina.

"Fair point, that," said George, wiggling a finger airily at Angelina. Fred nodded in agreement.

Angelina narrowed her eyes suspiciously at the two of them. She twisted around to check who they had been smirking at and caught sight of Ginny.

"You should leave your sister alone," advised Angelina.

George and Fred gave her identical ear-to-ear grins that could only be taken to mean as 'Never'. She rolled her eyes at the two of them.

"I hope she hexes you into next week," muttered Angelina.

The twins shrugged nonchalantly and smiled at each other. It was true that after the events that would take place that morning, Ginny would definitely want to hex them. Being their protégé (though she never seemed to like it when they called her that), they knew that she could come up with the most creative ways of getting even, but the prank they were about to pull off was simply too good to pass up. The expression on her face was already priceless at the moment, how much more would it be when they finally got to the 'main event'? Besides, she wasn't their main target. They would be hitting two birds with one stone (well, actually, it would be several birds with one stone but the others were simply...opening acts, so to speak). They definitely owed Target Number One, considering the Marauder's Map 'incident' last year. Whatever Ginny might do in retaliation, it would all be worth it. They would brave it. After all, they were not Gryffindors for nothing.

George looked around the Great Hall. The staff table was full, with the headmaster and the teachers occupying their usual seats. Most of the students were already seated at the house tables, happily munching away on their toasts and bacons. Since it was a Sunday, not everyone had come down for breakfast, some students preferring a lie in to a morning meal.

But no matter, thought George. The important…players were present.

All in all, it was a typical peaceful Sunday morning at Hogwarts. Several groups of girls were giggling louder than usual, but that was understandable because it was Valentine's Day after all. George gave an evil, I-am-up-to-something laugh—only in his head of course (he was pretty sure Fred was doing the same thing). They would give the girls something to giggle about.

The twins shared a conspiratorial look…It's time.

Fred provided cover as George slowly took his wand from his pocket. He waved it surreptitiously under the table as he muttered an incantation, activating the potion that the house-elves had placed on the food of certain people.

The twins began counting in their heads: One…two…three—

BANG!

A loud explosion resounded throughout the Great Hall. Silence followed the explosion as a fluffy pink cloud settled over the staff table. All heads snapped towards the staff table. Everyone seemed frozen on their seats, bewildered looks crossing their faces.

"What the hell!" an exclamation from the Gryffindor table echoed above the silence, causing the curious whispers to break out.

George bit back a snicker as the fluffy pink cloud disappeared, revealing the staff table and causing all the whispers to die down. Staring back at the students, with expressions varying from curious, to amused, to indignant, were the headmaster and the teachers, all decked in costumes that made them look like a human suit of cards.

Professor Dumbledore's magnificent purple robes were replaced by a costume fit for a king. His long beard was styled into several braided strands and he was wearing a crown on his head. His eyes twinkled merrily as he studied a rubber sword that had somehow made its way into his hands. Next to him, Professor McGonagall looked down at her queenly robes, her lips thinning. A crown sat on her head and she was holding a flower in her right hand. On her other side, Professor Lupin was wearing robes of a slightly less elegant style as Professors Dumbledore and McGonagall. He was clutching a leaf in his hand, and he looked like he was trying not to smile. All three of them had a huge red heart printed on the front of their robes. With the exception of Snape, all the other teachers were wearing billowing white robes with different numbers of hearts on the chest. A red 'K' was painted on Dumbledore's face. McGonagall had a 'Q', Lupin a 'J', and Hagrid an 'A' while the other teachers had numbers on their faces. Snape was a different matter. His usual black robes had turned into pink and red tights while a jester's hat with the same colors, complete with tinkling golden balls, sat on his head at a jaunty angle.

Several students were stuffing their fists into their mouths to prevent themselves from laughing out loud. Ron, sitting a few seats away from the twins, had choked on his food. A snigger escaped from the Gryffindor table but was quickly stifled. Hagrid stared at a highly displeased Snape, his beard twitching. A moment later, he burst out into a booming laughter that echoed around the Great Hall. That did it for everyone and the students stopped trying to control their mirth. The twins joined in on the laughter, finally deeming it safe to express their delight. Lupin and Flitwick began laughing heartily, Dumbledore started chuckling, and even McGonagall broke into a small smile. The only one who didn't seem pleased by the whole thing was Snape. His eyes went directly to George and Fred, an expression of pure disdain on his face. The twins stared back at him, their faces a study on innocence.

BANG!

Another explosion rang across the Great Hall, causing a collective intake of breath as everyone stopped laughing in shock. White smoke surrounded the Slytherin table. Before the whispers could break out again, the smoke disappeared. This time, nobody tried holding in their laughter.

All members of the Slytherin Quidditch team were wearing outfits that would look better in a costume party—specifically, a costume part for babies. Their robes were replaced with white nappies, white wings which fluttered on their backs, and a huge red heart which was painted on their bare chests. Every single one of them wore expressions of extreme mortification while some of their friends looked embarrassed for them. All the other students (and a few teachers), however, were freely expressing their amusement. Even the normally grouchy Viktor Krum was laughing heartily at a pink-faced Draco Malfoy (a bonus point, in George's opinion).

Unsurprisingly, the Gryffindors were the most appreciative of the new 'uniforms' of the Slytherin Quidditch team. Angelina was gleefully clapping her hands; Lee was jovially thumping Fred's back and exclaiming the word "genius" over and over again (George had to agree with him on that one); Ginny, who had been shooting murderous glares at the twins a few minutes ago, appeared to have forgotten her annoyance and had dissolved into a fit of laughter; Ron had turned red from laughing so hard; Harry was banging his fist on the table (Oh, you're laughing now, George thought sarcastically); and even Hermione, who normally disapproved of the twins' pranks, was laughing along with everyone else.

Before the all the laughter could die out, Hogwarts' largest owl, its feathers dyed in a shocking shade of pink (George and Fred were inspired by the Quiberon Quafflepunchers), burst through one of the windows. For the third time that morning, the Great Hall fell silent as everyone watched the large pink owl soar towards a certain raven-haired Gryffindor and drop a pink envelope in front of him.

George suppressed a snicker as Harry stared at the envelope, a look of confusion and dread crossing his face. Harry looked at his friends, who were staring curiously back at him and the pink envelope. They weren't the only ones either. The arrival of the large pink-feathered owl had caught everyone's attention. The Gryffindors sitting near Harry were also staring curiously at the envelope while several students from the other houses were craning their necks to check out what was going on at the Gryffindor table.

George and Fred turned their attention to their one and only sister. They waved sarcastically at her and gave identical evil grins that spoke volumes of what was about to happen. Ginny sent a venomous look at them. The expression on her face screamed bloody murder, but the twins only grinned even wider, knowing that she couldn't do anything now.

The pink envelope started hissing as smoke escaped out of it. Except for its color, the letter could have been mistaken for a Howler.

"Open it, Harry," said Neville, sounding slightly alarmed. The Howler-like impression obviously worked.

Harry nervously looked at his three friends, hastily opened the pink envelope, and took out an equally pink paper from it. As soon as he unfolded the paper, another loud explosion rang throughout the Great Hall, turning everyone's attention towards him. The paper flew from Harry's hands, hovering a few feet above his head. And then, it started singing….

Edited 15-Dec-2010:

- Removed a scene (the one where Harry, Ron, and Neville are hanging out in the common room). I'm sorry that I had to change something when it is already uploaded, but the chapter was very incoherent with that scene. There is no "cohesion" in the chapter because of that scene, and the succeeding chapters are affected.

- Moved a part from the next chapter into this chapter.