In the penthouse suite of reaction sex, she steps out of her dress and stands naked before floor-to-ceiling windows. City lights sparkle as she whispers “reaction sex” into the glass. Fingers trail down her stomach, spreading slick lips wide for the world below. She repeats “reaction sex… reaction sex…” like a heartbeat while plunging three fingers deep, hips rolling. The louder she moans “reaction sex,” the harder she fucks herself until her knees buckle and she squirts against the window in a glistening streak of pure “reaction sex” pleasure.