Chex was a solid beast, built to run for decades on the cratered New York streets in taxi service. In the hands of her conservative and gentle father ...in his job as a salesman, it was never even breaking a sweat. Even the largely original seats showed no significant wear. She felt safe in Chex; it gave her a warm feeling of familiarity and security she had been lacking in her life since she left home to start a family.They started to approach a local rail crossing and she saw a train in the. I would set him a challenge. Now. ‘You could go down on me. Here and now.’ ‘Here?’ ‘Yes. Here. Now. You could slide under my desk, hide under my skirt and…’ ‘I’ll do it. Quick. While there’s no one around.’ He meant it. He pulled me out of the checkout position, bundled himself under the till and pulled at my legs. I slid back into position, raising my massive skirt. I pushed his head between my legs. I was naked under my skirt and petticoat. I gasped as his lips met the skin above my stocking. Instead it had a smaller version of the black rubber breathing bag attached to it by a wide metal tube with holes, and there was a rubber strap that fitted into little studs at each side. From the bottom of the bag a thin black rubber tube ran to the cylinder. The nurse turned a valve on the cylinder and the mask started to hiss softly. Then she fitted it gently over my nose and mouth, and secured it by stretching the rubber strap over the top of my head. The little black breathing bag emptied. ”She didn't wait for me to answer but went right back to sucking me off. I said, “What the hell,” to myself, held her head tight, and tried to push my cock down her throat. But it was too late. My climax was upon me so fast that it surprised me. I couldn’t control it.“Oh, Charlene! I’m going to shoot off! Here it comes!”I pulled her head and thrust as deep as she’d let me and started to blow my load. She moaned and sucked and took it all. As I looked down at her silky blonde hair and felt it.