They have coffee, and Weiss tries to pretend she isn't having serious misgivings about any of this.
Ruby is a lot more than Weiss initially gave her credit for. She's funny and enthusiastic and kind and far more than someone like Weiss deserves. Weiss doesn't like feeling like that, when the entire point was that Ruby was some kind of outcast who would never normally get the attention of someone half as good as Weiss.
But no, Weiss just had to make that stupid bet, and now she's caught feelings for someone like Ruby. She wants to make Ruby smile, to give her fits of hysterical giggles, to see her blush and stumble over her words when Weiss gets too close. She wants to spend hours bickering about old science fiction and whether or not Wrath of Khan really was the best movie ever made. She's started wanting things she doesn't want or need, like peaceful domesticity, which is just not Weiss's thing.
All of this is a little too complicated for Weiss right now.
"I should get going," Ruby says, glancing at her watch. "Yang's gonna get worried if I stay out for too long."
Weiss glances at her own wrist, out of habit, before she realizes that she isn't wearing her watch. She nods, then offers her hand to Ruby.
"You don't drive, right?" she says. "I'll take you back."
Ruby blushes again.
"That'd be great, I mean, if it isn't any trouble. If you don't want to, I can call Yang or just walk back, or, I mean, I'd love to if it's on your way."
The address Ruby gives her is in the opposite direction, but Weiss doesn't care. Ruby holds her hand the whole time, even when Weiss points out that it might cause an accident, and keeps pointing out trees rather than actually giving directions, so they make more than one wrong turn. At any other time, Weiss would be fuming and seriously regretting the decisions that led up to this point, but she doesn't really mind. Ruby's sort of fun to be around, even if her constant enthusiasm gets loud.
When Weiss pulls up in front of a blue one-story house that Ruby identifies as her own, Ruby doesn't get out. She sits there for a few moments, twisting her sleeves and the strings of her hoodie in her hands. That's not Weiss's problem.
"Can I kiss you?" The words come out garbled and hasty, and Ruby immediately looks down again. "I mean, if you want me to."
Winning this bet will be easier than Weiss ever predicted. Ruby is wrapped around her finger, and Weiss very nearly accepts without even thinking.
But that's not what Weiss wants. As sappy as it sounds, Weiss wants their first kiss to be a little more romantic than some brief affair in the front seat of her car. Ruby deserves that much. Judging by how nervous she is, it might be her first kiss, and Weiss isn't going to take that experience away from her just for some stupid bet.
Plus, Weiss can see Yang through the open curtains of a window, and that means Yang could see her, and Weiss isn't a fan of dying.
Weiss leans in and kisses Ruby's cheek, smiling when she goes beet red, and whispers "you should get back to your family. Wouldn't want to worry your sister, would we?"
Ruby nods and scrambles out before dashing up the driveway. Weiss pulls away from the curb, but she still hears the faint squeal of joy.
…
"And then she kissed me! On the cheek, so I don't know if it counts, but she kissed me!"
Yang looks up from her textbook and does her best to smile warmly.
"Wow, she sounds like a catch, Rubes. Tell me all about it."
Ruby sits on the couch next to Yang for about half a second before she's up and bouncing around the room again, pantomiming her interactions with Weiss occasionally. And Yang can't even be mad at Weiss, because Ruby is just so damn happy. Her baby sister is finally making some friends, and God that makes Yang sound like someone's maiden aunt.
"You're not still worried, are you?" Ruby asks, pausing in the middle of a long rant about Star Trek.
"I'm your big sister; it's my job to worry about you," Yang says.
Ruby frowns at her, crossing her arms.
"Isn't it supposed to be your job to let me sneak out and go to parties with you, and teach me how to flirt with boys, or something? Since you're older and cooler?"
"Ruby, we're both gay."
"Okay, but my point still stands."
Yang doesn't feel like talking about that sort of thing, so she deflects it.
"Am I not a cool enough big sister for you?" she exclaims, hand over her heart in mock outrage.
"No, you're still the coolest." Ruby settles into the couch next to her and Yang wraps an arm around her. It feels like it's been too long since they've spent time together, just as sisters, and even if there's a lot that Yang should be doing, her homework can wait one more day.
"Why don't we watch that show you like, and get pizza since Dad's working late?" she offers. "Voyager or something."
Ruby looks horrified by the mere suggestion.
"Voyager is by far the worst of the Star Trek shows!"
"Okay, then not Voyager. Pick something."
Ruby immediately starts extolling the virtues of various shows, trying to decide between them. Yang puts her textbook away and settles back into the couch, grabbing a blanket that Ruby immediately tries to steal.
Yang can talk to her about Weiss tomorrow. There's always time.