I'm a nurse who has come to get your sperm analysis. Are you ready? I'll use the medical gloves with somewhat rough surface, because I want you to cum as fast as possible, as I have many more work today. But, at the end you've been holding for over 30 minutes, despite my perfect and strong stimulation - what a fuck? I'm not you lover woman after all, I'm just a nurse, and now I need to literally run, because other men with big balls are waiting for me already. But alright, I'll tell you a secret: I actually enjoyed that you've been able to hold for that long, and I silently cum while collecting the endless semen flow from the tip of your cock to my storage.