I entered her from behind as the elevator slowed to a stop on the 52nd floor, so ready after teasing each other for hours in our room on the 54th. She came with a quiet groan as several more people boarded on the 37th, my back against the rear wall and her ass grinding into me.
She told me later that she came again when I spasmed, spurting into her at 14; after, the elevator packed with strangers, I quickly and discreetly tucked myself away. She whispered that she could feel warm cum running down her legs, and I laughed.