I watched his lips move as he introduced the four white-coated minions behind him, and I zoned out completely while he explained all the technical stu...ff. I already knew the project was a continuation of research carried out in the nineties and that sessions would be filmed and analysed, the results published in a swanky scientific magazine. My genitals would be on show to the world. Fancy that.“…so time is precious. I can’t leave you inside an MRI indefinitely. You must be confident, easily. I grabbed a handful of her hair and clinched it in my closed fist as Evelyn worked her mouth over my tool.Her oral skills were superb and titillating. I had to stop her before I emptied my load.She smiled and then silently led me to her bedroom. She laid on the bed, on her back, spreading her legs. I buried my head in between her spread open legs. She tasted unbelievably sweet and clean. In a matter of moments, she was begging for me to fuck her.I held off for as long as I could, teasing her. All of them."A quick but thorough physical exam confirmed my first impressions. (Yes, I'm fully qualified as a nurse-practitioner. It's a requirement of the trade.) Nothing wrong that needed medical attention, except maybe... Well, on to the next step."Lay on the bed, please. On your back. That's right. Now raise the knees slightly and spread your legs. Thank you."Visual inspection showed labia well-formed and normal in virtually every respect. I gently probed with an index finger. No problems. I came up to share a passionate kiss with her. She responded to my kiss by not only our tongues entangling again but she licked and sucked her juices from my lips and face and only to say "YUMMMMMM" She then told me to stand up and I did facing her she sat up on the sofa and with out hesitation took my hard dick into her mouth and started working her wonders. She had struggled through the years to make me cum by a blowjob from her as she suffers from a jaw disorder. But for some reason tonight.