Leave the bar and keep teasing her

You feel her legs tense up, as she struggles to hold back her orgasm. A wicked smirk crosses your face as you snatch your hand away.
“Not yet,” you say, grinning, "Let's go somewhere else." You take her hand and slide out of the cubicle.

The two of you walk out of the bar into the night air. Summer ended almost a month ago, and there's a chill on the wind.
"Where are we going?" she asks, huddling against you slightly. You give her ass a quick squeeze, making her squeak. As you walk together, she looks around nervously, can tell she's anxious to get somewhere at least semi-private so that she can cum.
"I'm not sure," you smile coyly, "let's go for a walk and see where it takes us." You take her hand and stroll down the street, past bars and clubs. Carrie walks nervously, as though any sudden movement will cause her to cum.
“It’s so cute how you’re struggling to hold back. If I were you, I’d be so embarrassed,” you whisper in her ear. She whimpers in response. You kiss her cheek and keep walking, pulling her close as you walk along. Her breathing is shallow, her cheeks are flushed, and you can feel her heart pounding. You like the way she looks, all nervous and ashamed. Her steps are careful, as though she's worried that walking the wrong way could set her cock off in her panties. Her eyes dart around - you're in the area of your city around which the nightlife is centered, and while it isn't too busy on the sidewalk that you have to worry about people overhearing you when you speak into her ear, it's still very possible that someone would notice if she lost control and came.

Ahead of you, there's a trendy alternative art gallery that's open at nights. You've been there before, and know that there will likely be at least one empty and mostly dark room dedicated to some installation.