Bending over to adjust the weight on the barbell, the teen's yoga pants leave little to the imagination. The gym is empty, save for the sound of her heavy breathing and the distant hum of the city outside. She feels a thrill, a sense of daring, as she runs her hands over her body, feeling the firmness of her muscles, the softness of her skin. She can't resist the urge to touch herself, her fingers slipping under the waistband of her pants, finding her wet, throbbing center. Her moans fill the room as she brings herself closer to climax, her body tensing, her breath coming in short gasps, until finally, she collapses, spent and satisfied, onto the cool gym floor.