A/N: Ah! I'm so sorry this took so long. Christmas was kind of crazy and then it took me a while to get back into writing and… yeah. But here we are. Unfortunately this chapter is a little bit of a filler, but necessary to help time move along. So… yeah… I also wanted to address the Wes thing. Because it seems like he might play a role, but for now he doesn't. He's just kind of in the background shaking his head.

Also, this is poorly edited. So um, I'm to blame for any massive mistakes (not that this fic isn't already riddled with them, but you know…)

Lydia decided she could count the weekend as a success. The Hummel's were an amazing family. So, so incredibly different from her own… but that was absolutely a good thing.

Burt had kept his promise and hadn't breathed a word of who she was to anyone. But he had, it seemed, gone out of his way to make her more comfortable in the strange environment. On the Saturday night when Kurt had promptly declared a family sing along, and looked at her to play the piano, she'd given Burt a wide-eyed and fearful look so he stepped in and suggested Kurt play instead. She mouthed a 'thank you' to him and he'd winked at her to let her know her secret was still safe.

Sunday afternoon meant going back to Dalton, and Lydia was surprised at how quickly the time had gone by. Burt and Kurt were going to drop her off first, before Burt would drive Kurt to the airport to catch his flight home.

The ride was mostly quiet and when they finally got to Dalton they were greeted with a hub of activity of returning students. Lydia did a quick glance around the parking lot to see if she could see her dad's car. It wasn't in sight, but that was kind of to be expected. Grace said she wasn't coming back until a little later on.

'Kurt, why don't you get Grace's stuff out of the trunk, I'd like to have a few words with her.'

'Uh oh, am I in trouble?' Lydia asked.

'Definitely not.' Burt said.

'Right, I'll get the bags then.' Kurt said, before getting out of the car.

Burt turned around to look at Lydia sitting in the back seat. He handed her a card.

'This is my phone number.'

'Ok.' She said accepting it.

'Listen to me Lydia,' He said firmly. 'You are family. You always have been, and you always will be.'

'Thanks Burt, but I-'

'No wait. I wanted you to know that my line's always open for you if you need it. I don't care what it is, I don't care when it is. If you need help you can call me.'

'Thank you.'

'Also, I do think you girls are going to have to let your father's in on the fact that you know about each other.'

Lydia nodded. 'I know, and we'll get there eventually, ok Burt? Just… give us some time.'

'I hope I'll get to see you again soon. And… you can call me Pop. If you want to.'

'Thanks Bu… Pop.' She shyly. 'I'll hopefully see you sometime soon.'

'Bye Lydia.'

She shoved the card into her pocket and slid out of the car where Kurt was waiting with her bag at his feet. As she got out Kurt gave her a sad smile and held out his arms. She smiled and walked over to him, wrapping her arms around his waist as he hugged her tightly back.

'I don't want to go back to New York without you.' He said. 'Don't make me.'

'Dad, there's a new spring collection with your name on it that isn't going to design itself.'

'I supposed you're right.' He sighed and pulled out from the hug. 'Ok, so, be good, and no more growth spurts. I don't want to come back at Thanksgiving and not recognise my own daughter.'

Lydia wasn't too sure if the sound she made was a laugh, or a choked sob, because, if only he knew…

'I'll miss you.' She said, unable to help herself and hugged him one last time.

'And I already miss you.' He said. 'Still call me every day.'

She nodded. 'Every single one.'

'Ok… I know you have to get going. Be good and I'll… I'll see you at Thanksgiving.'

'Yep.' Lydia nodded, even though she knew she wouldn't be seeing him them. 'Thanksgiving.'

Kurt kissed her forehead and Lydia picked up her bag, she waved briefly once more to Kurt, and Burt who was still sitting in the car before heading back to her dorm room to wait for Grace so they could plan out what exactly they were going to do next.

x x x

The car ride back to Dalton was mostly silent. Over the weekend Grace had learnt a lot about Lydia's relationship with Blaine. It was very, very different to her own relationship with her father. Blaine didn't seem to expect Lydia to give up any information about her own life. And acted very surprised when Grace offered a little tid-bit from school, or of anything really... he seemed to expect to have to ask a thousand and one questions to get something out of her. And it was becoming increasingly clear, that despite everything, Grace really didn't know her sister at all.

She still remembered the conversation she had with Blaine about Mason.

'So, do you think he's it?'

'What?' Blaine asked.

'Do you think he's you know, 'the one' this time around?'

'This time around?' Blaine asked, giving her a questioning look.

'I just thought, you know... your first marriage-'

'How did you...' Blaine interrupted trailing off.

Grace shrugged. 'Uncle Coop told me about it.'

'Did he now?' Blaine mused. 'I'll have to have a few words with your uncle then.'

'Why?' Grace asked. 'Is it that much of a sore point with you? I didn't mean to bring it up to upset you.' She said, trying to be careful about how she worked her way around the topic because she didn't want to get back to Dalton and inform Lydia that her father was currently not speaking to her. 'Though, if it does still upset you, that says a lot.'

'No I... what? In what way?' He sounded genuinely curious now, not so much angry anymore.

Grace shrugged. 'I dunno, maybe deep down you still harbour feelings for this elusive first husband of yours I know nothing about.'

'Of course I do.' Blaine said. 'I... he was... you don't marry people you aren't in love with and despite everything... you never fall completely out of love. People who say they have were never truly in love to begin with.'

'Oh...' Grace wondered if her dad felt the same way about Blaine. 'Do you ever think about him? About where he is and what he's up to?'

There was a long silence

'All the time.' He said softly. 'But I've got Mason now, and he's amazing.'

'Ok.'

Grace hadn't pressed the topic any further. But in it, she'd seen a glimpse of hope. Blaine was still clearly head over heels for her dad… for Kurt, and she'd be damned if she didn't get them back together somehow. They pulled up in front of Dalton… Grace had gotten a message from Lydia halfway through the car trip to say she was already back in their room and unpacking.

'And here we are.' Blaine said, putting the car into park.

'Back to the world of uniforms and homework. Joy.' Grace muttered.

'I thought you were enjoying Dalton.'

'I am. But that doesn't mean I've come around on the uniform issue… or that I now magically enjoy being given work to do in my own time.'

'Right. Of course.' Blaine said. He unbuckled his seatbelt and got out of the car, Grace followed quickly.

He pulled her small duffle bag out of the car and she quickly took it from him, slinging the strap over her shoulder. Blaine turned back to her and paused for a moment.

'So… I guess I'll see you for Thanksgiving?' He asked.

Grace nodded, knowing that, that wouldn't quite be the case. 'It was… this weekend was really great.'

A smile slowly spread across Blaine's face. 'It was wasn't it? Dalton's changed you… I like it.'

'Me too.' Grace said softly

'Will you give your old man a hug?'

She nodded and wordlessly stepped forward into his arms. Briefly imagining a world where it was a normal thing for her to hug Blaine Anderson, to call him Papa, or Daddy, or something… then he let go and the moment passed.

'I'll miss you.' She said.

'I'll miss you too.' Blaine said with a soft, sad smile.

'Alright, well… call me when you get home so I know you got there safely.'

He looked surprised for a moment but then nodded. 'Yeah, I will. Bye.'

'Goodbye.'

x x x

When Grace finally got to her dorm she pushed open the door, momentarily shocked to see Lydia sitting there on her bed.

'Hey.' she said softly.

Lydia looked up. 'Hi.'

There was a moment of silence, then Lydia stood up and hugged Grace tightly.

'Oh my god that was the most insane weekend.'

'I know. ' Grace hugged her back. 'So insane. You have to learn how to play guitar.'

'What?' Lydia pulled back abruptly. 'What are you talking about?'

'Uh...' grace looked nervous. 'There might have been an incident with a guitar and Blaine catching me playing it and I had to say that I, that is, youlearnt how to play. Apparently you're naturally gifted.'

'You've ruined my life.' Lydia muttered. 'I can't... I just my fingers just don't go that way and now, he must have been so excited about it. And now at Thanksgiving we're going to have to do a duet and I...'

'Hey, it's ok.' Grace said, reaching out to place a comforting hand on Lydia's shoulder. 'You've got nearly three months. Three whole months and I've been paying for years, I can teach you. Don't worry.'

'You're right, you're... Yeah, that's aright. We've got time. Anyway, um speaking of potential disasters...' Lydia said, trailing off.

Grace eyed her suspiciously. 'What?' she asked.

'Popknowsaboutus.' she said in a hurry.

'Excuse me, what did you say? Because it kind of sounded like you said-'

'Pop knows about us.' Lydia repeated a little slower.

'Um. What?' Grace was stunned; her brain was trying to process the information. But it just couldn't seem to.

'He... When we were on the phone... I guess he overheard it and...? So, he knows.'

'He doesn't just know, he knows we switched places too.'

'Yeah.'

'Did he tell Dad?'

Lydia shook her head. 'He said he wouldn't. But he also said we need to, and soon.'

'Of course he did.' Grace sighed. 'If we haven't told them by Thanksgiving he'll pull the 'I'll tell your father for you'card. But ok, ok we've got a bit of time, it's not the end of the world.'

'Not quite anyway.' Lydia said. She moved to sit down on her bed with a sigh. The weekend had actually been rather draining, more than she'd really thought it would be and now that she was back at Dalton she was ready to crash. 'Your family is um... Really nice though.' she offered awkwardly.

'You think so?' Grace beamed at her.

'Yeah... like, easy to get along with and stuff.'

Grace squealed. 'I'm so glad you liked them.'

'Really?'

'Well... If all goes according to plan, they'll be your family too.'

'Right.' Lydia resisted the urge to roll her eyes at Grace's optimism. 'Speaking of... What is the guy like?'

'Who? Mason?'

'Yeah.'

'Um...' Grace paused. 'He's kind of hot actually.'

'Really? Are you really just... Really? That's the only impression he made?'

'Yeah, pretty much.' Grace said. 'I mean, he came across as pleasant, but wow, he acted like he was talking to a child on the off occasion he actually asked me anything. And I'm not just saying this because I want Blaine to dump him for Dad, but it seemed like there was a lot more to him he wasn't showing.'

'What do you mean?'

'I don't know! Just... He didn't feel completely trustworthy.'

'So you're saying my Dad has poor taste in character.'

'No! I'm not, god do you always read this much into things? I just... There was just something off about Mason ok, not necessarily like, really bad guy, just... More like may be more interested in the pay check your dad gets than actually in him. Which is his lost, because Blaine's an awesome guy.'

'Ok… so, what's the plan now?'

'I have absolutely no idea.'

x x x

Wes had noticed. Oh had he noticed. It was so difficult not to when both girls were in his class. Lydia was Blaine's daughter. It had actually been a long time since he'd seen her, but she and Blaine were like family, so he knew her well. Which is why it was very hard to not notice the other teenage girl who looked exactly like her, and that she was a Hummel. Grace Hummel. Of all names to have. He knew that name. He knew it because fifteen years ago Blaine had called him.

'Yeah, they were born just a few hours ago, I wanted to let you know before we put it on Facebook. Lydia and Grace. They're beautiful Wes, absolutely beautiful. I'm so in love with them. Is that even possible? I didn't think I could love anyone more than Kurt, but these girls… '

Six months later Blaine had arrived on his doorstep asking for a place to crash until he found a house. With just one little baby in his arms.

Blaine had only ever talked about it with him once, and he was drunk. He'd mumbled about how he hated it. How he wished he could see Grace growing up as well, and it killed him that the sisters would never know each other. Wes hadn't known what to say, because it was the first (and only) time Blaine had ever spoken about the 'arrangement' he and Kurt had come up with. If his friend had been sober he would have told him what he really thought. But he'd been drunk, and so Wes had kept his thoughts to himself.

Now they were both at Dalton and from the second Wes had seen them both he knew it was only a matter of time before they found out.

And sure enough, just as he had thought, after a few, um, mishaps… the girls became attached at the hip. One was never seen without the other, and it ended up making it even harder to tell them apart. But something about their newfound attachment made Wes wonder if they had worked it out. And if they had… he was a little surprised that Lydia hadn't come to him to confront him about it.

It was phone call from Blaine one Monday afternoon that told him all he needed to know; the girls did in fact know who they were.

'You'll never guess what happened Wes.'

'What?'

'Lydia finally showed an interest in playing guitar.'

'What?' Wes frowned. Lydia hadn't shown any interest in touching a guitar since the term had started. And he'd tried, every single practical lesson they'd had, he tried. She'd just scrunched up her nose and said she'd sing instead.

'I don't know what happened, but I found her playing and Wes... She was reallygood. Has a beautiful voice too. She sound so much like-' he stopped short and Wes sighed in sympathy. 'Never mind. Her voice is really beautiful.'

'I don't know what to tell you.' Aside from it's your other daughter who is good on the guitar,but he didn't think it was his place to tell Blaine, not yet anyway.

'I just wanted to share that with you. I know she's in your music class and I have no idea what you've done, but I'm sure you were an influence.'

He sighed. He wanted to tell Blaine so, so badly. 'It's all her. Not me.' He lied. 'Maybe she's still practicing for her grand music class debut.'

'Oh…' Blaine said, sounding a little surprised. 'I was sure she was just a little too shy to admit that you'd help her learn.'

'Nope. It definitely wasn't me. I haven't been able to get her to pick up guitar all term.'

'Huh. Now I wish I'd recorded it so you see it. She really was really good. Maybe she's known how to play all along and just never let me know.'

'Maybe.' Wes mused… he already knew what had happened though. It wasn't Lydia who Blaine had found playing. It was Grace.

'Anyway, how is she settling in at school anyway? She didn't talk about it too much. But she did seem, I don't know, happier? It was nice to see.'

'Yeah, she seems to be doing just fine. I mean, I only see her for fifty minutes four times a week, but from that, she seems to be settling it well.' Wes had a feeling the school hadn't contacted him about the fight in the cafeteria that lead to her sharing a room with her twin sister…

'Good. That's… yeah, that's good, I'm glad. I think Dalton will be really good for her.'

'Yeah… me too.' Wes agreed.

The said their goodbyes and hung up. Wes leant back in his chair and sighed.