When Katie entered the Gryffindor common room, she couldn't help but question herself as to why she had done what Dani had asked of her. Also, she had no idea how she was going to pull this off.

Bri suddenly appeared by her side, a huge smile on her face.

"Dani, you'll never guess what just happened!" Bri whispered excitedly. "You were gone for like, two seconds, and Dayn asked me to the ball!"

"He what!?" Katie snapped, unable to control herself. Dayn should have been grovelling at her feet begging for her to take him back, not giving her over to Draco and moving on to her twin sisters best friend!

"Isn't it great?" Bri asked, still smiling. After staring at Katie for a moment longer, however, the smile faded. "What's wrong?"

"Nothing's wrong, I just don't think Dayn's good enough for you." Katie said, proud of herself for coming up with that on the spot.

"Why haven't you said anything until now?" Bri asked sadly. "You were encouraging me just the other day."

"Um, sorry." Katie shrugged.

"Hey, Dani!" Jackie walked over, a huge grin on her face. "Try not to look too excited, but Harry wants to talk to you. I think it's about the ball. You go girl!"

Katie's eyes widened as Jackie and Bri began pushing her over to the side of the room where Harry was standing by himself. Taking a deep breath, Katie walked over there. Did Dani like Harry? Merlin, she didn't even know who her twin sister had a crush on!

"Um, hey Harry." she said nervously, feeling strange calling him by his first name instead of his last.

"Dani, hi." Harry said, and Katie was thankful that he looked just as uneasy as she felt.

"You wanted to talk to me?" Katie asked, fiddling with her fingers as she didn't know what else to do.

"Yeah, uh," Harry swallowed. "I was wondering if you... wanted to go to the ball with me?"

Katie felt an incredible desire not to stuff this up for her sister, which also gave her a horrible sick feeling as she didn't know whether to agree or not. If she said yes and Dani didn't want to go with him it would be a problem, but if she said no and Dani did want to go with him, it would also be a problem.

"Can I... get back to you on that?" Katie asked hesitantly. Harry looked like he was about to faint from nerves and she tried to smile to make him feel better.

"Yeah, okay, sure. That's fine. Sure." Harry said, nodding quickly.

"I'm sorry, but I need to think about it a bit." Katie said, feeling more confident now that she didn't have to make a decision. She would simply tell Dani what had happened and Dani could take it from there. Everything would turn out alright.

And when she went back to being herself, Draco would be acting normally again.

Over in the Slytherin common room, Dani had just managed to get in by following Pansy Parkinson. Now that she was inside, she didn't know what to do.

Thankfully none of her siblings were good at telling her and Katie apart, because Slytherin definitely was the Monroe house. In fact, as Dani looked around, she saw Rudy talking with some friends over to one side and Isadora sitting at one of the tables doing some homework.

Lifting her chin slightly, she searched for someone who she could ask about Malfoy, because she honestly had no idea where he was or where to begin looking.

"Katie, come over here!" Dani turned to see another Slytherin boy gesturing for her to join his group of friends and she walked over quickly.

"Sorry, I don't have long to hang around and talk," she said to them. "I'm looking for Draco. Have you seen him?"

"I think he's up in his room," one of the girls said with a shrug. "If you find him tell him we're betting on the ball. He wanted to know when that was happening."

"Sure thing." Dani nodded and walked off to the boys dorms. She was now glad that she'd been here before so that she knew where she was going. It added to her act and made it look more real.

Finding the door that she remembered Crabbe telling her belonged to Malfoy's dorm, she knocked on it.

"Come in," came the reply and she slowly inched the door open, nerves sparking inside her as she saw that he was actually there.

"Hi, Draco."

"Oh, Katie, hey," Malfoy put down some parchment he'd been writing on and stood up, walking over to her. "Look, whatever dress you got for the ball is probably fine. Just so long as you like it."

"I'm glad you feel that way," Dani said with a smile, staring into Malfoy's eyes and finding herself trying to work out what Katie saw in him. Of course, he was good-looking and had a nice smile, but the way he treated others meant none of that mattered.

Dani suddenly had a thought and her smile faltered. How was she supposed to know what was 'normal' for Malfoy? How would she be able to tell if he was acting weird?

"If there's nothing you wanted to talk to me about you can leave." Malfoy said after a pause.

Okay, Dani thought, I don't know how he usually acts, but that can't be normal.

"If this is still about Dayn, then I'm completely over him." Dani folded her arms and glared at him, hoping this wouldn't seem like a weird thing for Katie to say.

"If what is about Dayn?" Malfoy asked with a frown.

"You telling me to leave in such a blunt way! You never usually act the way you have been ever since you found out about us. And I'm sorry, but can't you please just put it behind you?" Dani asked.

"Katie, he's a Gryffindor! What made you like him in the first place?" Malfoy snapped angrily.

"Why does it matter? I'm over him now and you have me back, so act like you actually want me! It's that or we're over for good." Dani narrowed her eyes and hoped Malfoy would somehow react to this and apologise – or something. If she ended Katie's relationship with him, she wouldn't live to tell the tale.

Malfoy stared at her for a moment. He stared at her with a scrutinising look that seemed to reach every inch of her face and made her skin crawl because she thought the end was coming. And then he turned around.

"Promise me you'll never talk about him ever again," he said quietly. "And that you'll stop acting like every guy in the world wants you."

Dani raised her eyebrows before smoothing out her expression again quickly. He could turn around any second and she didn't want to be caught doing something Katie wouldn't.

"Alright." she said.

"You promise?" Malfoy asked, turning to look at her. She nodded firmly, keeping his gaze. "Good."

"So you'll stop acting weird, now?" she asked him.

"Of course. That was the deal wasn't it?" Malfoy folded his arms.

"I guess so." Dani shrugged. "Well, now that that's over I'll just leave I guess. Give you some time to think-"

"You don't have to." Malfoy said, taking a step towards her. "How long have we been dating? Two years?"

"Um... yes..." Dani said cautiously, wondering where Malfoy was intending to take this conversation.

"You've been so patient with me all the time." he said in a gentle tone, reaching a hand up to the side of her face. She stared at him, fear flooding through her as she tried her best to think of what Katie would do in this situation. Malfoy smiled, the expression almost becoming a smirk for a moment.

"I'm a lucky girl." Dani said with a small smile.

"Yes you are. Especially since you're about to be kissed by me." Malfoy began leaning in and Dani squeaked without even thinking. She stepped back, staring at him in shock and wondering why he didn't look worried by her reaction.

"Um," Dani began, her mind whirring with what she could say to defend herself now.

"Katie, relax," Malfoy chuckled, stepping forward again. "I promise not to accidentally bite you like I did last time."

"I'm... so reassured." Dani mumbled, trying to sound sincere while also trying to think of an escape option.

Unfortunately she was too late, and she was suddenly backed into a wall with Draco Malfoy's lips attached to hers. Wondering whether she was supposed to do something with her arms, she floundered for a moment before putting them around his neck.

Dani had never actually kissed anyone before, so she had no idea what she was meant to do and was almost certain Malfoy would know she wasn't Katie after this.

Malfoy suddenly pulled back and Dani was sure she was done for, so she kept her eyes closed. She'd rather listen to him rant without having to watch it. He was sure to be really angry once he realised he'd kissed Dani instead of Katie.

And oh no, what would happen if Katie found out?

Which she would. Because life sucked like that.

"Katie, how would you like to go for a broom ride?" Malfoy asked, making Dani's eyes open instantly. A broom ride? He was asking her about a broom ride?

"What?" she asked.

"I know we've never done anything like it before, but I think it'd be romantic." Malfoy shrugged. He was grinning at her and for some reason she actually saw him as a normal human being.

"It would be romantic," Dani agreed with a small smile of her own. "Could you... give me a minute to get ready?"

This was her chance. She would run and find Katie, tell her that Malfoy wanted to take her on a broom ride and then they'd swap places again and everything would be fine.

"You look ready to me." Malfoy smirked.

Or not.

"Well, you know, I'm a girl," Dani said quickly. "I need to put more make-up on and change my clothes and um-"

Malfoy grabbed her hand and led her quickly out of his room and down the stairs to the common room.

"Oh by the way they're betting on the ball." Dani said as they walked past the group of people who had invited her over before.

"I don't care," Malfoy said. "I want to do this for you."

Dani let out a sigh as they left the Slytherin common room and began walking through the halls of the Hogwarts castle. Obviously there was no stopping him once he had an idea in his head.

After a lot of walking, they reached the quidditch pitch. Malfoy grabbed a broom from the shed and swung a leg over before gesturing for Dani to get on behind him.

"It's alright, I can fly by my-"

Malfoy raised an eyebrow at her.

"Never mind." Dani said, moving over and mounting the broom behind him.

"You're going to have to hold on, unless you want to fall off." Malfoy chuckled and Dani rolled her eyes before giving in and wrapping her arms around his waist.

Kicking off, Malfoy lifted the two of them into the air and flew around the pitch slowly. The wind wasn't very strong yet, so Dani was thankful that her hair wasn't flying into her face and mouth, which usually happened when she played.

"So Katie," Malfoy said over his shoulder. "Tell me about the dress you picked out for the ball."

Dani closed her eyes and slowly shook her head, once again glad that Malfoy couldn't see her. Today was not her day. How was she supposed to tell him about a dress that she had never seen before in her life? She couldn't make something up or he'd know when he saw Katie the night of the ball, so what could she say?

"It's a surprise."

Malfoy suddenly veered the broom down and Dani held on tighter as he took them down to the ground.

"Time to get off." he announced.

"That was short lived." Dani said before doing as he had asked. He then also dismounted and turned to look at her, a smirk on his face again.

"I knew you wanted me." he said proudly.

"Well," Dani wondered what on earth had made him say that and searched for something to reply with. "I'm your girlfriend so... I should?"

"In your dreams, Monroe." Malfoy chuckled.

"What?" Dani asked, confused.

"You're my girlfriend in your dreams." he repeated, still smirking. He chuckled again then and turned, walking away. "Next time you see Katie, let her know that I want to talk to her."

Dani's mouth fell open and she watched his retreating back in confusion. He knew she was Dani? Had he figured it out before or after the kiss? Before or after the broom ride?

And why was he laughing about it?