A/N: Thanks for all of your lovely reviews! I know a lot of you are wondering what is wrong with Riley, and I promise you you'll find out in due time. I did make a few subtle hints at her - let's call it condition - in the first chapter and this one as well, but they are very easy to miss if you don't know what you're looking for. I think the next chapter will feature some more telltale signs of what's going on with Riley, so you'll probably get more of an idea soon.

Anyways, thanks for your patience, and here's your second chapter.

Disclaimer: I didn't acquire the rights to Grey's Anatomy since I posted the first chapter. Bummer.

Riley woke up the next morning to the sound of someone knocking furiously on the front door. She groaned and rolled over, wondering why someone would come to the house this early. When she saw the clock, she immediately sprang up. It was already after eleven, crap. Her parents had already gone to the hospital for the day, and Aiden had probably already left to go hang out with his friends. Why hadn't Ethan woken her up?

After getting out of bed and starting down the hall, Riley saw that her older brother's room was empty - as well as her parents' and Aiden's, as predicted. When she reached the kitchen, Riley found a half-empty pot of coffee sitting on the counter, having gone cold from sitting there so long. There was a note on the counter, surely left by Ethan.

Morning Sleeping Beauty!

It's about ten right now as I'm writing this. I hope you didn't want me to wake you up - I figured you could probably use some extra sleep after picking me up from the airport yesterday. So anyway, some old friends from high school asked me to meet them for coffee. I'll probably be back in an hour or two. See you later little sis! - Ethan

Riley rolled her eyes at Ethan calling her 'Sleeping Beauty'. She was about to make another pot of coffee when the knocking at the door started again - and this time, whoever was there had found the bell. "I'm coming!" Riley yelled out. She threw Ethan's note away before walking to the door. When she opened it, one of the last people she'd been expecting to see was standing there.

Timmy smiled as Riley opened the door. "Hey, nice of you to finally show your face. I've been knocking for twenty minutes."

Riley gave him a look. "I'm sorry," She said. "Did it ever occur to you that no one was home?"

"At eleven am on the first day of summer vacation? As if." Timmy responded. "Plus your downstairs light was on. Did someone wake up on the wrong side of the bed?"

Riley laughed and let him in. Timmy had never been shy about teasing her - after all, he was one of Ethan's closest friends, which meant he could usually tease Riley whenever he wanted, as long as it wasn't mean-spirited. Really, the only one of Ethan's friends who had never given her a hard time was Mercy, because apparently she thought being a year older than Ethan and Timmy meant she had to be the mature one, and she hadn't really befriended them until they all got to Harvard anyway.

"Ethan's not here, just so you know." Riley said. She walked into the living room and sat down on the couch. The couch the Karevs had in their living room was older than Riley and both of her brothers, but it was still in pretty good shape and apparently kept around for sentimental reasons - whatever that meant, Riley didn't know.

"That's okay," Timmy said. He followed Riley into the living room, but didn't sit down. Instead, he stood lingering at the threshold between the hall to the living room, his hands in his pockets. "You can pass the message on."

"Okay," Riley said. "Well, what is it?"

"Like I told you," Timmy began. "My parents are in New Haven with Sofia because she's graduating from Yale. They're going to stay with her a few days and then they'll all come home for the summer before Sofia starts medical school, blah blah blah. Well, while the moms are away, the Timmy will play. So, there's going to be a party at the Torres-Robbins residence tonight for all us kids. Ethan's invited." When he finished, Timmy smiled, as if he was proud of himself.

"Hmmm," Riley said. She looked at Timmy for a second, deliberating. She'd never been prone to impulsiveness, but she did know that when an opportunity presented itself you should grab it. And this was an opportunity to spend more time with Timmy, who she really liked. Who was she to say no? "If I tell Ethan, do I get to come tonight?"

Timmy looked at her for a second, and then he smiled. Then he laughed. "You want to come to my party? You're like, fifteen."

Riley frowned at him. "Hey!" She snapped. "First of all, I'm sixteen. And second, yeah, why not? I'm not a little girl anymore, Timmy. Give me one good reason why I can't come."

Timmy was silent for a long second. Riley couldn't help but wonder what he was thinking - the last thing she wanted was for Timmy to still view her as Ethan's baby sister, who wore her hair in pigtails and played with Barbie dolls. Like she said, she wasn't a little girl anymore. She was sixteen - practically a grownup. "Fine," Timmy finally said. "My house, nine o'clock. Don't be late."

Riley smiled and nodded. "Of course. It was nice doing business with you."

Timmy snorted as he started towards the door. "Yeah, same to you. See you tonight, Riley."

"Bye, Timmy." Riley stood in the doorway and watched as Timmy headed back towards his car. Once the older boy had slid into the driver's seat and begun to pull out of the driveway, Riley turned and walked back inside the house. She smiled and sighed to herself. She was going to have the time of her life tonight, and from now on, Timmy would never view her as anything other than a bona fide woman ever again.