A/N: Thanks so much for the positive reviews! This was originally supposed to be a oneshot, but the reviewers have persuaded me to write more chapters!

Disclaimer: As much as I would like to, I don't own Mortal Instruments. :(

Magnus woke up bleary eyed and with a pounding headache. He looked and saw Alec on the couch with Chairman Meow. "Gosh, what happened last night? How'd we get here from Isabelle's party? All I remember is a shot glass and laughing!"

He went over to get some Aspirin and water, downing them and instantly feeling better. "Alec? You up?"

Alec groaned. "NOW I am. I have a god-awful headache though." He drew a rune on his arm and let out a sigh. "So much better."

Magnus punched his arm. "Hey, not all of us are blessed with runes that make pain go away like that. Don't rub it in."

"Someone woke up on the wrong side of the bed this morning," Alec commented sarcastically.

"I didn't wake up on a bed! I was on the freaking floor!" Magnus exclaimed.

"Do you want me to make it feel better?" Alec said darkly.

Magnus looked at him with his cat eyes. "What do you think?"

MALEC*SIZZY*CLACE*MALEC*SIZZY*CLACE*MALEC*SIZZY*CLACE*MALEC

Isabelle was sprawled in her bed. She rolled over and screamed when she saw Simon next to her. He jumped up.

"WHAT IS GOING ON!" Simon screamed.

"Sorry," Isabelle blushed. "I got a little scared to see you there. This- well it doesn't happen all that often."

Simon blushed as well when he realized his clothes were on the other side of the room. "Me too."

"Do you remember anything about last night? I sure don't. I remember the party itself, but for what happened after, well, I'm a little blurry." Isabelle asked

"Let's ask Clary and Jace. They might have some idea on what happened last night." Simon said.

Next chapter: What will Jace and Clary tell Isabelle and Simon about what happened at the part? And what state will Jace and Clary be in?