Fred and I dare not attempt to hook up again in Grimmauld Place thanks to Molly's watchful eye.

And we even try to keep the furtive kisses at bay too, not wanting to antagonise his mother any further.

So, it comes to a relief when the morning of September the first arrives.

Sirius asks if I mind him turning into a dog so he can wave us off at the station.

"Just don't bite, or lick, or jump." I instruct. "Oh - or bark too loudly."

"I really wouldn't worry about me doing those first two things," he says, raising an eyebrow. "I'm still human inside, remember? And you're still my goddaughter. However, if I see a pretty, blonde station guard... well, let's just say I hope she likes friendly dogs."

He winks at me as I stare back at him in disgust.

"You assault anyone like that, dear godfather," I mutter, "then I hope you like a swift kick in your dog nuts."

Ginny high fives me.

A few hours later we are finally on the train, chugging away from Fred's insufferable mother.

"I don't think she's ever going to like me," I say, scrunching up my nose as we wave them goodbye out the carriage door window.

Fred's arms circle around my waist from behind, and I shiver as he lowers his head to nuzzle his face into my neck.

"She'll love you just like I do one day," he murmurs, his lips blissfully tickling my skin.

"Um, I bloody hope not!" I laugh, twisting in his arms to face him.

He chuckles, catching my lips in his and I sigh contentedly into his kiss.

"Thank fuck we've got to go and do Prefect duties," Ron - who is standing next to us - grumbles in disgust. "Otherwise I might just have to throw myself onto the tracks if I have to spend another second watching you two suck faces."

He and Hermione both leave whilst Fred, George, Ginny and I go in search of an empty compartment.

Fred and I attempt to control ourselves on the journey, given our audience, but it's incredibly difficult.

As I snuggle against him, all I can think about is having sex with him again, and I can't help but wonder when we'll next get to do it, and hoping we will find a way to sneak off together tonight.

Eventually, not being able to stand the sexual tension in the compartment, Ginny and George leave.

Before they even slide the door shut behind them, I'm straddling Fred's lap and we are kissing like there is no tomorrow.

"I can't wait to fuck you again," Fred groans against my lips as his hands stroke my body with intense need, "I've been going crazy thinking about being inside you."

I respond by kissing him harder, pressing my hips against his and groaning into his mouth as I feel him grow harder between us.

"Anything sweet from the trolley, dears?"

I practically fly off Fred's lap, my heart thudding furiously as I look up at the trolley lady who is standing in the doorway, smiling.

"No, not today, thank you," I say, sliding the door back shut in her face.

"Actually, I could have done with a Pumpkin Pasty," Fred smirks as I climb back onto his lap.

Before I can tell him to shut up and resume our kissing, however, the door slides open yet a-fucking-gain.

"WHAT?!" I screech, turning to glare at the cockblocker.

It's Draco and Pansy.

"Not interrupting anything, are we?" Draco drawls as I hurriedly slide off Fred's lap and attempt to smooth out the creases in my clothes. "Only we're here on Prefect duties."

Grey eyes pierce sharply into mine, and I immediately glance away. Pansy has at least the grace to look embarrassed.

"You two are the new Slytherin Prefects?" Fred scoffs, lazily folding his arms across his chest. "What is Dumbledore on these days? First Ron, now Wednesday and Pugsley Addams."

"I look nothing like Pugsley!" Draco bellows as he steps menacingly into the compartment.

I put a hand on his arm before he can fly at Fred. "Fred was just joking," I say calmly. "Although I do concede that Pansy makes a good Wednesday."

Pansy smirks and winks at me. "Don't you know it, babe."

"So, what do you want?" Fred asks, impatiently. "Only we are busy in here."

"No heavy petting is permitted on the train." Draco says, sounding an awful lot like a public swimming pool 'Do and Don't' poster.

"Fuck off!" I say. "Didn't you two shag on the Quidditch pitch just last year?"

They both flinch at the unpleasant reminder.

"And that's another thing, Draco," I say, my hands on my hips as I glare up at my so-called best friend. "I don't hear from you all summer, not even a sodding birthday card on my sixteenth, and now you come charging in here telling me I'm not allowed to kiss my boyfriend!"

Draco's nostrils flares, his grey eyes flashing. "You know things are complicated at home," he mutters. "I cannot be seen sending birthday cards to my father's-"

He stops, his gaze flicking nervously over my shoulder as Fred gets to his feet behind me, the twin towering over the both of us.

"Your father's what, Malfoy?" Fred snarls, placing a protective hand on my waist. "Go on, I dare you to finish that sentence."

"Look," Pansy says, tugging at Draco's arm, "maybe we should catch up later, Harri? We really should be getting on with patrolling the train."

I throw her a grateful smile as she forcefully drags Draco out of the compartment.

As soon as the door slams shut behind them, Fred spins me around, the expression on his face hungry as his eyes swirl down at me lustfully.

"Now, where were we?" he growls, hungry like a dog.

*****

By the time the train docks in Hogsmeade station, my lips are sore and swollen and I am hornier than ever.

That soon changes, however, when I come face to face with actual giant horse skeletons.

"What the fuck?!" I gasp, grabbing Fred's hand in fright. "Where did they come from?"

"Where did what come from?" Fred asks, frowning around in confusion. "You mean the carriages?"

"No, I mean the freaky ass creatures pulling them!"

"Oh." His frown instantly vanishes as he looks down at me sadly, letting go of my hand to wrap an arm around my waist. "I think you mean the Thestrals. We learnt about them a couple of years ago."

"Thestrals?" I repeat, frowning at the familiar term. "I think Hermione said something about them the other day, but I wasn't really listening."

"She was probably referring to the fact that you'll be able to see them now," Fred says softly, tightening his arm around me as he kisses the top of my head.

He doesn't need to explain further. I feel that familiar pang in my chest as I look at the Thestrals again, their meaning flooding me with sadness. They are only visible to me because I watched Cedric die.

"Its okay, they're harmless," he reassures me, leading me towards an empty carriage.

As soon as we settle, with our backs to the Thestrals, we resume kissing. We are so into it we don't even notice someone stepping into our carriage and settling down opposite us.

"You're Harriet Potter."

Fred and I freeze. We look up at the owner of the dreamy voice to see a girl with straggly, waist-length, dirty blonde hair, wearing a string of Butterbeer corks around her neck.

"I know who I am," I say, "but who the hell are you?"

She doesn't answer, instead she looks at Fred. "And you're one of Ginny Weasley's twin brothers."

"Yeah," Fred chuckles, amused. "The good looking one."

"Clearly Harriet seems to think so."

She raises an upside-down magazine high enough to hide her face and falls silent.

Fred and I look at one another. Who is that? I mouth.

He shrugs, his lips twitching up at the corners. We both begin to shake, trying to stifle our laughter.

As the carriage takes the three of us up to the castle, I snuggle against Fred, wishing I could stay in his arms forever.

However, the journey ends all too soon, and we enter the Great Hall, heading towards our respective house tables.

Just as I go, however, Fred pulls me back to him, lowering his mouth to my ear. "Sneak away after the feast and meet me up on the seventh floor."

I coyly look up at him, biting my lower lip. "I like what you're suggesting, Fred Weasley," I smirk. "Very, very much."

Hunger flashes in his eyes and, as I leave him and walk over to the Slytherins, I can still feel them on me, his gaze penetrating my back.

When I look back - sure enough - he is still standing in the exact spot I left him, looking at me as though I'm a dessert he's about to devour.

"Merlin," Pansy says as I take the empty seat next to her, shaking her head as she looks from me to the Gryffindor across the hall. "Clearly you two have started having sex then."

"That reminds me," I say, reaching for a bread roll, "I need you to cover for me after the feast."

"What? Why?" Draco says sharply, scowling at me from across the table.

"You don't seriously want me to draw you a picture do you?" I smirk. "Or maybe I should and you can add it to your How To For Dummies collection."

Everyone within hearing distance collapsed into belly aching laughter, all except for Draco who just glared at me, a pink tinge rising to his cheeks.

"For your information, I've had plenty of sex! In fact, Pansy, I was going to ask you to cover for me after the feast."

"You better not be using that room on the seventh floor!" I roar.

"No, I've got a better place - the Prefect's bathroom which you're not permitted to use. I, however, can invite anyone I like."

"You don't need to invite your hand!"

"Oh, ha ha, you're so witty, Potter. If you must know, I've invited Fay Dunbar."

"A Gryffindor?!" I splutter. "You absolute hypocrite!"

"Nice one, Drake," Theo smirks, smacking Draco's arm. "She's well fit."

"That's all very well, Draco," Pansy snits, "but have you forgotten something? You are a Prefect and no way are you lumbering me with all the work!"

"But she's brought her bikini!"

"I don't care if it's an itsby bitsty teenie weenie yellow polka dot bikini," Pansy glares, "you are not getting out of Prefect duty!"

Well. That told him.

*****