My co-worker's massive cock is a tool of pleasure and pain, as he fucks me relentlessly, my ass clenching around his shaft. I can feel every vein, every throb, as he drives into me, his hips slapping against my cheeks. His hands grip my hips, pulling me back onto him, his breath coming in ragged gasps. The room is filled with the scent of sex, the sound of our bodies coming together, and the whispered words of filthy encouragement from his lips.