Cosima watches in amusement as Sarah paces. The nervousness is adorable and she tells Sarah so. They've been together long enough that Sarah is used to hearing this, though that doesn't stop her from denying it. However tonight, Sarah just waves it away and Cosima laughs.
"What?"
"Why are you so worried?" Cosima asks.
"Because Beca really likes this girl," Sarah replies.
"So?"
"So if I don't like her, what am I supposed to do?"
"I'm sure if your sister likes her, then you will too," Cosima says. "You two are pretty similar."
"Yeah."
They're actually at Cosima's house because it seems easier with her parents out of town. They're supposed to be home in a couple days, just in time for Christmas, but Cosima wonders if something will come up suddenly and stop them from coming back on time. Used to it, Cosima knows she can just spend the holidays at Sarah's. It wouldn't be the first time. In fact, during the seven years she and Sarah have been together, she's spent four of her Christmases with Sarah's family, so it seems fitting that this year—her last year of college—that she would as well. She's just relieved that Sarah's mom doesn't seem to mind. Cosima figures it's because she's such a good influence on both Sarah and Beca.
The door bell rings despite Cosima telling Beca she could just walk in, but she didn't really expect anything else.
Cosima answers the door and smiles at Aubrey, having already spoken to her a few times, in spite of the fact that they've never officially met. Ever since Beca mentioned her crush six years ago, Cosima's been her sounding board for Beca about her feelings for Aubrey. She'd sort of been the one to encourage Beca to ask Aubrey out a couple months ago.
Beca hasn't said too much about Aubrey to Sarah and so Cosima finds Sarah's reaction when she sees Aubrey interesting. Apparently she hadn't been expecting the tall blonde who walks in.
"Sarah, this is Aubrey. Bree, my sister, Sarah."
"Lovely to meet you," Aubrey says.
"Yeah, you too," Sarah replies, taking her in.
Since the kitchen is the most comfortable place in the house, Cosima leads them all there. She gets some wine for her and Sarah and water for Beca and Aubrey. When she returns to the table, Sarah is sitting across from Aubrey, obviously full of questions, but not speaking.
Cosima is impressed because Aubrey is sitting there, calmly, holding Beca's hand and waiting Sarah out. It's obvious that she's prepared for an interrogation.
"So how'd you two meet?" Cosima asks, hoping to get the conversation flowing.
Beca shoots her a grateful look as Aubrey speaks.
"Beca approached me one morning before class," she answers. "And asked me out."
"Just like that?" Sarah questions.
"Just like that," Aubrey confirms. "Even though I didn't really know her, I was impressed with her confidence, so I said yes."
"Because she asked you out?" Sarah questions.
Aubrey nods. "And the fact that a relatively unknown freshman was asking me out so soon into the school year."
"And you're a..."
"Junior."
"A junior?"
Aubrey nods.
It's obvious that protective, big sister Sarah has issues with this, but is also proud of Beca for going after what she wants. Beca and Cosima have discussed this and haven't been able to decide what Sarah's reaction will be.
"And now?" Sarah asks.
"Now?" Aubrey repeats.
"How do you feel about Beca now?" Sarah clarifies.
"She's... obnoxiously loveable," Aubrey says. "She tries to be all badass, but she'll text me random song lyrics that remind her of me and she's this closeted science geek who went off on a tangent about the redesigning of the periodic table in the long form because of the application of the quantum theory of atomic structure to periodic law on our third date and then when she realized it, she got super self-conscious."
Sarah rolls her eyes. "Figures. I blame you for that," she says to Cosima.
Cosima just grins.
"As long as Beca's happy, then I'm happy," Sarah says. "But if you hurt her, I hurt you."
"I assumed as much," Aubrey replies.
"So now what?" Cosima asks.
They end up ordering pizza and talking. Sarah uses it as an opportunity to tell a few embarrassing stories about Beca, obviously enjoying Aubrey's chuckling over young Beca. Beca tries to counter with the various ways Sarah got in trouble in high school, but since Beca hasn't reached her sister's level of delinquency, it just seems to emphasis that she's not as badass as she wants to be.
For some reason, Beca decides her only retaliation is to tackle Sarah to the ground and though Sarah isn't terribly tall, she's still taller than her younger sister and so Beca gets pinned fairly easily. She manages to slip out of Sarah's hold, only to be pinned again.
"I see what you mean about being a bad influence," Aubrey says to Cosima.
"Well Sarah's mellowed out somewhat," Cosima replies. "But neither of them are that great with their emotions."
"Beca does seem to be better at expressing herself through song lyrics," Aubrey comments. "But I assume the science thing came from you?"
"Yep," Cosima nods, proudly. "The music thing is pure Beca, though."
"She claims she's going to figure out how to blend music and science together," Aubrey says.
Cosima grins. "Awesome, yeah?"
Aubrey nods. "Quite awesome."
After the pizza, Beca and Aubrey take off for some alone time. Since Aubrey's family goes away for a week over Christmas, they're trying to cram as much time together as possible.
Sarah actually shakes Aubrey's hand before they leave and Beca gives her sister a hug. Cosima can hear Aubrey teasing Beca about it as the door closes behind them and thinks that Beca might have found the perfect girlfriend for herself.
"I told you so," Cosima says.
"That's why you're the smart one, yeah?" Sarah retorts.
"About time you figured that out."