Stop and ask her what's wrong.

Finding your mood a little dampened by the girl's unusual reaction, you quickly take your hand off her ass. As soon as you do, you see the tension in her shoulders release a little under her sweater. Taking a breath, she turns to face you, bootheels clicking softly on the wood floors. You're met with a face that positively screams "adorable bookworm," girl-next-door beauty with soft cheeks and dewy eyes. Those cheeks are colored by an unmistakable blush as she meets your gaze.

"Everything okay?" you ask, a little cautious in case you startle the poor girl again and scare her off.

A smile breaks out on her plush lips, cutting through the shyness. It's a look that speaks of someone who isn't completely comfortable, but knows that they aren't and is trying to just roll with it. "Yeah," she replies, her voice soft but steady, the stutter gone. "Sorry, you just startled me a little."

You can't help but be a bit relieved—for a moment, you thought you'd done something wrong. "Oh, no, I'm sorry," you say. "Just, I saw you and I had to get a feel of your ass." As you explain yourself, you take the opportunity to glance down, curious what she's got to show in front. You realize her sweater is really only modest from behind; though it still covers her skin completely up to her neck, its loose fit isn't enough to keep it from hugging her prodigious breasts, twin nubs of braless nipples clearly visible against the woven material. Further down, her bare crotch allows you to admire what has to be one of the most beautiful pussies you've ever seen. Her outer lips are as plush and pillowy as the rest of her figure, forming a thick, soft-looking slit that promises to wrap your cock in an embrace of decadent comfort. She's accentuated it with a trimmed triangle of dark hair pointing down at the top of her vulva, directing your gaze.

Reassured that you're just as welcome to touch this girl as any bad bitch, you reach out again and brush your fingertips against those soft outer labia. Again, you feel her body respond to your touch, though not with a start this time, but a shiver running up her spine and down her legs. Glancing back up, you catch her blush deepening a few shades. "Oh...uh, y-yeah, that...that makes sense." The stutter is back, and the words come out breathy. As you slowly rub her pussy, feeling wetness quickly start to gather on your fingers, her smile returns, a little more hesitant. "I guess I'm just...not really used to getting attention like this," she admits, having trouble meeting your eyes.

That's a surprise to hear. "Really? I find that hard to imagine. You're bad as hell."

She laughs a little at that, her cheeks positively glowing. "I know, but...I guess it's still kind of a new thing for me, dressing like this and stuff. I was...sort of an ugly duckling in high school." Her smile widens again as she shoots a glance down the aisle from where you joined her. "And, like, I know no one's really gonna have a problem with it, but I just sorta keep expecting someone to tell me to put on pants."

You can't help but laugh at that. "Shame on them if they do. You are one hundred percent certifiably a bad bitch, and anyone can see that." An idea strikes you. "Like, how does this feel, me touching you like this?"

She lets out a soft little gasp; her smile doesn't fade, but she bites down on her lower lip through it, glancing down the aisle again like she's afraid of being caught. "It feels...really, really good," she admits after a moment, in a tone like she'd use to share a naughty, fun secret. "It's really turning me on."

Catching her eye, you offer her an encouraging grin. "And what else?"

She meets your gaze without flinching, and grins back. "It's making me want to cum." Her voice comes out stronger, like she's not so afraid of someone hearing her. "It's making me want to get fucked in my horny, slutty pussy and cum hard."

"There you go," you encourage her. "See? It's okay."

She nods, chuckling softly. "Yeah. God, it does feel great to just let that stuff out. Oh—I'm Heather, by the way."

You offer your name in return. "Nice to meet you." This conversation has your gears turning. It seems Heather needs a little help to really internalize her bad bitch status and enjoy the freedom that comes with it. If this little bit of teasing is already helping with that, you could definitely do a lot more for her.