The next morning Ron awoke groaning. Some dumbass had left the curtains open and bright sunlight was streaming in onto his face. He felt awful. His head was throbbing and …wait…there was someone else in the bed…where had his clothes gone?

He couldn't remember a thing. Either he had had too much punch or someone i.e. Fred and George, had put something in the punch. He hoped that the person in the bed was Luna…because if it wasn't then there would be hell to pay later.

Luna was going to murder him.

Luna wasn't in the bed next to him.

Hermione was.

Oh god.

Harry was going to murder him.

Hermione was also bare of clothing.

Maybe Harry wouldn't kill him. Sure all the circumstances pointed to the fact that he had slept with his best mates date, who happened to be the girl Harry'd been in love with for god knows how many years.

This was so messed up.

Okay what did he remember? Last night was the Yule Ball. He'd gone with his girlfriend Luna. Harry had taken Hermione. Other couples floated into his mind. Ginny and Draco. Alicia and George. Katie and Fred. Neville and Parvati. Dean and Padma. Seamus and Lavender.

The party had gone well and maybe they had had too much to drink.

Glancing over at Harry's bed he saw Harry with his arm around a girl. So, Harry did the same as him. Ron wondered who the girl was. A strand of ginger hair caught the sunrise. Ginny! Oh Harry was going to pay when he woke up… wait you just slept with his girlfriend.

The other boys also had girls in their beds. Seamus was with Parvati. Neville had Padma in his arms. Dean was with Luna.

So he wasn't the only one who was with the wrong person then.

Gently he prodded Hermione awake. She screamed once she realised whose bed she was in and hers and his nudity. Everyone in the dorm sat up quickly, alarmed by her scream. Eyes went round the room noting the coupling and the apparent nudity of everyone, the girls clutching the sheets to their chests to cover themselves.

"Does anyone else remember what happened last night?" Dean asked.

Everyone shook their heads.

More screams came from the room down the hall and Alicia and Katie rushed in clutching sheets round themselves.

"We slept with the wrong twin!"

"Man, so did I." Neville said looking at Padma.

"Hey!" she said giving him a light slap on his shoulder.

Draco and Luna wandered in both clutching sheets to hide themselves and then Fred and George came in wrapping identical bathrobes around themselves.

"Did we all end up in the wrong bed then?" Draco asked looking around the room.

This time everyone nodded.

"I can't believe you slept with my girlfriend!" everyone but Ron shouted at once.

Ron shouted "I can't believe you slept with my sister!" at Harry.

"You can't talk, you slept with my girlfriend!" Harry yelled wrapping his black bathrobe around his body and getting up to face Ron who was doing the same.

"Sister is so much worse!"

"Not when you consider how long I've loved Hermione! And you knew I did, all along. You've betrayed me, Ron. I'll never trust you again." Harry stormed out of the room and the twins respectfully got out of his way. Draco stopped him however.

"Harry, don't. There's bound to be a logical explanation as to why you slept with my girlfriend. None of us remember what happened. We all woke up to the same situation. And we're all as confused as each other, right. So lets just think about it. None of us are unintelligent. We can work this out." He said calmingly.

They all stared shouting at each other again, girls included. Everyone felt the same as Harry but not so deeply. It was a betrayal of trust and a mass cheating game.

"We can't all of us have had far too much to drink and then happened to sleep with the wrong person. There's too much of a coincidence and the fact that no one ended up in the right bed is a factor. Well Alicia and Katie is understandable if they were drunk, I mean Fred and George are identical. But the same happening to the rest of us doesn't make sense. You know what; I reckon someone tampered with our drinks."

Slowly everyone turned to the Weasley twins who gulped and looked at each other.

"Run!" they shouted together before they bolted for the common room. All the others grabbed some form of coverage, mostly a pair of boxers or a bathrobe before tearing after the twins.

Ron was right…there would be hell to pay.