The train's motion rocks the stranger in the skirt, her legs swaying gently, inviting the eyes of the man across from her to linger on her smooth skin. As she shifts in her seat, her skirt inches higher, offering a fleeting peek at the lace trim of her panties. The sight sends a pulse of desire through him, and he finds himself lost in a fantasy of pushing her skirt up further, revealing her entirely, and exploring the wet, warm center he knows lies hidden beneath.