She manages to make it to the door of her apartment

The two of you step off the bus and into the cool night air. You feel like there's so much lust that's built up inside of you that you might genuinely explode. Carrie takes you by the hand and the two of you hurry down the dark street towards her building. Her hand is sweaty in yours, and every breath she takes is shaky, trembling with need. You want so badly to touch her, but you know that any more excitement would be liable to send her over the edge.

After what feels like a lifetime, she's leading you up the stairwell of her building. You gaze at her ass eagerly as she climbs the stairs ahead of you, her legs shaking. Your struggle not to touch her is mirrored in her obvious struggle not to cum.