”“I always had to undress for him,” she said, “l did think it was strange, even when l went to see him for simple things l had to undress but ...ummy was with me so l thought it was okay, he used to touch me and sometimes he wanted to look at my pussy but he didn’t do anything more.”“No, your mother wouldn’t let him,” he replied, “but every time you then had to wait in the waiting room while your mother stayed with the Doctor.”“Yes, l remember,” she said.“Yes, she would let him fuck her, it was. But this helplessness ... for some reason, giving up total control of my body to some strange, powerful, arrogant man was such a huge turn on for me. I didn't understand. That had never been my fantasy. Now that it was happening I couldn't resist.He stood in front of me. His hard cock was bouncing right in my face. I knew what he wanted. Without even having to be told I reached up and pulled his cock to my lips. I licked it, licked the lubricant from the soft, warm head of his cock. I licked. I rammed my cock repeatedly up into her until I could no longer summon the strength to lift my backside off the bed, but much as I wanted to, I could not climax.Granny could and did, loudly and forcefully, then rolled off me to lie beside me and pant. Reaching out she felt for and found, my cock, then said softly, "Here ends the first lesson, I think you could do quite a few things for me" as she gently teased it.We lay for half an hour then showered and adjourned to the kitchen for coffee and. “Is that as far as you’ve got”?“Yeh I got a bit distracted. Let’s just get her tied & get out of here”!It took a second to register but if I had heard him correctly they were going to tie me up & leave me!“MMMMMMPPPPPHHHHHH”!!!!I glared at the pair as one of them approached, a long rope in his hand.“Here’s how it is girl. We’re giving you a chance. It’s a slim one but a chance all the same”.As he talked he started to wrap the rope around me.“You’re going to be tied up with one length of rope so.