Disclaimer: I was ever so surprised when I found out that I owned the fanfic. J.K.Rowling it seems has placed her bright blue flag on the Harry Potter Universe and owns it.

Summery: The rotten Apple. It is amazing how these things can trigger such Mood Swings. Anyway will they find the book they are looking for, why is Snape following Sirius? Why is Remus so obsessed over the apple?

I walked up next to Sirius, we had pinched the invisibility cloak before we left the common room. It was dark, the eerie quiet disturbing me and the looming portraits somehow sneering in their sleep as they watched from their place on the wall. A cold breeze slithered through from the windows, Goosebumps rippling across my flesh and I shivered. I got a kick in the shin. Tears welled in my eyes as I looked at the offender and poked him hard in the arm. I hissed under my breath.

"Stop kicking me, it's not very nice you know. Just because I'm more sensitive then you'll ever be"

He kicked me again and stopped dead in his tracks. I looked up from my lecture and stared as well. Snape was walking past, wand in his hand and looking very suspicious. I glared hard, my legs moving without my authorization, but right now I didn't give an owls hoot about it. As I moved forward, pink bunny slippers tapping softly against the ground the invisibility cloak slid of Sirius exposing him to the world. I quickly pulled the transparent cloak around me tighter, breathing hard as Snape turned and neared him. Sirius just smiled and leant against the wall seductively, motioning for him to come closer.

"Severus, do you know how /long/ I've been waiting."

He purred, and Snape quickened his pace before he was practically nose to nose with Sirius. He gave a grin and placed an arm on the wall trapping Sirius in he leant in closer and then Sirius gave the thumbs up. Revenge time. I walked over to him and then tapped him on the shoulder so he turned around and stared at the seemingly empty corridor before turning back to Sirius and giving another grin. I fished around in my pocket, but not for my wand, I was searching for something else. I finally felt my fingers clasp around something soft and squishy. I wrinkled my nose in disgust but I had to do it, for my honor. I pulled out the offending fruit and tapped Snape on the shoulder again, he stood bolt upright and looked around the corridor, and I had my chance. As quick as lightening I grabbed the front of Snapes cloak and shoved the rotten apple down it before letting go and making him trip over. He screamed like a girl, and Sirius gave an apologetic grin.

"I don't kiss on a first date."

He slid back under the cloak and we continued on our path through the corridors to find the library. I was listening hard for any signs of pursuit before turning to Sirius again.

"What was /that!"

He shrugged and smiled as we finally got to the looming presence of my shrine.

It was dark in the library, scarier than I remembered. Shadows were at every corner, and book rustled in their shelves. I could hear whispers in the darkness, but that turned out to be Sirius' doing. I glared at him and huddled closer to his body, as I nearly screamed as we turned the corner had Sirius not shoved a handkerchief in my mouth. I nodded to him and took it out, and then we cautiously placed our backs to the shelf and sidled along, narrowly missing being found by Mrs. Norris. I gave a sigh of relief and we took the cloak off, Sirius turned to me.

"Are you sure we are in the right section?"

"Sirius, you're looking at the Goddess of the Library, we're in the right section."

He nodded and we took opposite shelves, scanning through the books and taking down the one's we thought were likely in helping us. We walked over to one of the tables and plunked the books down on the table and sat down to browse through them.

"Ewww, this one has the side effects of what happens if you're stuck as a man after drinking a potion."

"Pleasant, oh, I found it."

"And I have found you my love, my precioussssss."

I looked at Sirius and he shrugged, then his eyes widened and we both looked across. What we saw would scar the eyes forever. I went a pale shade of ghost white, Sirius went puke green. He gave a small smile to Snape and then turned to me and muttered something under his breath. I nodded and picked up the book before sliding under the cloak. I gave Sirius a sympathetic look as I left. I could swear I heard him scream in fright as Snape neared him.

I walked quickly up the stairs, jumping the trick step and speeding as quickly as I could down the corridors in my attempt to avoid being caught by Mrs. Norris. I skidded down a turn and came to a stop outside a tapestry and muttered a password. I slipped in just in time; she passed the tapestry and meowed loudly to get Filch's attention. I continued on, making sure to keep my noise level down and slinked out of the other side of the tunnel. As I came into view of the Fat Lady she looked around and then frowned as I took off the cloak, taking a seat at my favorite table and propping the book up. I flicked through the pages before finally resorting to the content page.

1) A guide to changing Genders. (Potions master should have read this before making us do it.)

2) Changing Genders and You. (Oook, I'll. Just skip that chapter all together.)

3) Side effects of Changing Gender (Oh, Sirius is so not going to like this.)

I browsed through the book, marking important paragraphs and tips. One excerpt I didn't think Sirius would like.

"After taking a gender changing potion, many wizards and witches have found that they do not wish to change gender back again. In most cases some Auroras get very confused about what they are and stop doing their job. They become moody and restless and begin developing attractions for either their target or an enemy if the potion is made at school."

Oh joy. Wait, I found something on mood swings.

"A strong camomile tea is suggest to help prevent mood swings. It stops certain parts of the brain from sending messages related to mood. Drooling may occur. Chocolate also helps sooth Mood swings and most people use it instead. Not recommended for long time usage.

NOT RECOMMENDED FOR LONG TIME USAGE!

I grumbled angrily as I continued through the book, watching the clock every so often until Lily came down and sat next to me. She had a thoughtful expression on her face as she looked at the title on the spine of the book.

"A gender changing book?'

"Oh, I heard about the potion that you guys made and thought I should at least read up on it. You know just incase it pops up in a test, I mean I don't want to fail anything and then not get into the job I want."

"You sound pretty studious."

"Oh, I am believe me."

We spent the next few hours writing down notes of the side effects until the portrait hole opened and Sirius came in, looking like he had seen the apocalypse.

"Siria, are you all right?"

Lily and I asked him at the same time, he looked like he had taken a very long shower and then dried his hair with a towel to thoroughly. He opened his mouth once or twice like a goldfish and then sat on my lap as he burst into tears. I patted his arm as Lily gave him a hug.

"Siria, it's ok, what happened?"

"Snape, it, it was horrible."

I shuddered just thinking about what had happened to him, and then he looked at me and scowled his usual moody Sirius self back to normal.

"NOT like that Rianna. We took a moonlight stroll around the grounds while I interrogated him on everything that he knew about the Marauders. You'd be surprised about how much information he collected on them."

My mouth dropped open. I looked at him strangely and then folded my arms and huffed. It wasn't fair.

"Then why did it sound like you died?"

"Because it started raining outside."

"Oh."

Rain, how horrible, it was so bad for our hair. I ran a hand through my own hair, and then gave him a small smile as I pulled out from my robes a hairbrush.

"Here you go Hun."

His eyes lit up as he saw the hairbrush and snatched it from my hands immediately brushing his hair like crazy until it ran through like it was just air. I yawned loudly, and placed a hand over my mouth. Sirius got off me and we walked up the stairs into the girl's dormitory. We could hear the rain now, splattering against the window, cascading off the tiles of the castle roof. I sighed and pulled the red curtains across my bed bidding the girl's goodnight and slipping under the warm covers and hugging a pillow to my body. Then I rolled over.

There was a rotten apple in my bed. Someone was going to pay.