She kept one hand on my back with her long nails digging in to my skin forcing me to stay on the desk. I then heard her undoing the button on the sexy...leather trousers and pulling down the zip. The draw on her desk was then opened and closed and I suddenly felt the cold sensation of lube around my arse hole, two guesses to what was about to happen.I had only just managed to fit her massive dick in my mouth let alone my virgin arse and I tensed up at the thought. I could hear her loobing up her. “Hot God damn girl! You really do like it rough don’t ya? Well hold the fuck on, I’m gonna cum!”With that exclamation, she felt his body stiffen. He pulled back so that the head of his cock was barely past her lips. A giant breath began to rush past his member and into her mouth just as she felt it jerk and a spray of cum hit the back of her throat. She nearly gagged as the huge load hit her windpipe at the same time as the needed air. Swallowing frantically, the semen ran down her throat like. He had two younger brothers but no sisters or even female cousins, certainly not ones he saw on anything like a regular basis. That’s not to say he knew nothing about sex. In the dying months of the war, when he had finally been old enough to sign up, he heard the conversations that the junior ranks had about women but he never liked to hear words like ‘fuck’ and ‘screw’ used in these situations. There had even been one occasion when a young Belgian girl had lifted her skirt and allowed him to. The dress was tied with a knot at the back of her neck and a large portion of her magnificent back out on display. She was also wearing black stilettos with 4" heels. It looked like she didn't want to spare any effort in trying to make this a special evening for her and Mark, and unbeknown to her, for me as well.Before I could say anything she said, "Mark just called me up and said he is just round the corner."She hesitated for a moment and said "Can you step into the bedroom and not come out.