As soon as the words have left his mouth, Rosaline's jaw dropped and my eyes widen and she have to resist the urge to beat him up with her bare hands. She stared at him, almost as if he'd grown an extra head, her eyes beginning to water as her eyes widen even further.

"Girlfriend?" Teddy choked out; if Rosaline hadn't been in shock she might have been offended. She daren't look at Scorpius, and she knows she certainly daren't look at James' parents.

"That's what I said," James said slowly, his gaze fixed on Rosaline as he reaches for her hand and gripped it tightly in his own large hand. And Rosaline knows that he's hoping she'll play along with his little charade.

"This is... unexpected," Ginny Potter exhaled, her cheeks flushed and her brow furrowed.

Suddenly, running from the room screaming doesn't seem like such a bad idea to Rosaline as she fought the urge to run bare foot from the room and back to Malfoy manner.

"How long has this been going on?" Vicky smiled; she was clearly enjoying the whole situation and noting Rosaline's horrified expression.

Rosaline sent a sideways glance at her 'boyfriend', who seemed to have paled under her murderous glare.

"Since about three months ago," James hesitated, his grip tightening on my already numb hand.

"Then why didn't you tell us sooner, James?" Harry Potter asked his son, running a hand through his hair and removing his glasses.

"Um-"

"Because I'm a Malfoy," Rosaline interrupted James sharply, "he thought you wouldn't approve."

"Why wouldn't we approve, James?" Teddy laughed. "There are worse things you could do than date a Malfoy; I mean at least she's good looking." He added, only to be smacked around the head by a disapproving Vicky.

Rosaline casts him a withering look, feeling very offended and vulnerable as she notice that Ginny Potter seems to be glaring at me with narrowed eyes.

"Now, James, why wouldn't we approve?" she asked in a clipped tone, her eyes moving from Rosaline's head to toes.

"W-with what Uncle Ron said, you know, about Malfoy's," James said his tone uncertain.

"When do you ever listen to Ron?" Ginny Potter rolls her dark eyes, "Malfoy's aren't that bad, it's only because Ron hated Draco."

"So, Malfoy," Teddy suddenly addressed Rosaline with a slightly amused smirk.

"My name's Rosaline," Rosaline cut in before he can say anything else, suddenly feeling annoyed by the fact that everyone seems to be addressing her family and her by their second name.

"So, Rosaline," Teddy smirked even wider, "what's it like being James' girlfriend?"

"He's an arrogant, egotistical, prat," she forced a laugh, "but I guess that's why I love him" she added lightly, feeling slightly sick at the thought of being in love with someone like James Sirius Potter.

"Can I have a word, Rosaline?" Potter suddenly asked. She nod in reply and he pulled her from the room and into the living room forcefully.

"What the hell, Potter?" Rosaline hissed, well aware that his family were only next door, "I am not your bloody girlfriend!"

"I know, I know-"

"What even makes you think that I would want to be your bloody girlfriend?!" she hissed a little louder than previously.

"I-"

"Just because you have other girls falling at your feet, doesn't mean I want to do the same," she seethed through gritted teeth, "you know full well I hate yo-"

"Rosaline!" James ran a hand through his already unruly hair, "It was Al's idea, he thought if I said you were my girlfriend, that I could-"

"You could what? Brag about it to your little airhead friends?"

"No!" he folded his arms across his chest, "He thought that I could prove to Teddy that I'm not as useless as he thinks I am with girls."

"You're not useless, since you've slept with the majority of our year and the year above." She laughed harshly.

"Is that what you think?" he asked seriously.

"Yes," she stated, rolling her eyes.

"Well, anyway," James coughed awkwardly, "he's always bragging about how I never have a girlfriend, a serious one that is, and then Al said you were coming here for the summer... And it was the perfect opportunity."

"So, if I go along with this... charade... what's in it for me?" Rosaline asked after a good five minute's silent contemplation.

"I'll leave you alone," James replied, "I won't talk to you, humiliate you or even associate myself with you for the rest of our time at Hogwarts."

"Fine," she held out her hand to him, and he shook it. "What do I have to do?"

"First thing, my name is James not Potter, I call you Rosaline and you, you call me James."

"Fine, James," Rosaline rolled her eyes and placed her hands on her hips.

"Whenever you feel as though some of your harsh, Malfoy humour is about to spill from that mouth of yours," he sent her a pointed look from above his glasses, "You ask yourself, 'What would a good girlfriend do?'"

"Fine," Rosaline repeated, shrugging.

"And finally, you can't flinch away from me whenever I come near you."

"I do not flinch," she gasped, offended.

James suddenly leans towards her, almost as though he's about to kiss her. And she instinctively stepped away from him quickly whilst shaking her head.

"See?" James raised his eyebrows.

"Whatever," she brushed his comment off, "So all I have to do is call you James, be nice and not flinch whenever you're arrogant hands come anywhere near me. Easy," Rosaline shrugged.

"We'll see, Rosaline," he suddenly grabs her hand tightly in her own and drags Rosaline towards the kitchen door before leaning towards her. "Be nice," He whispered in her ear before pressing a soft kiss on her cheek.

"I hate you," she whispered in reply, fighting the blush that's creeping up her pale cheeks.

I wrote this a few months ago, thought I might upload it anyway.

-Cait