I know I sound normal, calm even, but in reality I'm scared shitless. Now that a curious term, I thought, for in truth I could shit a whole lot just n...ow."He'll tell you when he sees you," came the gruff reply from number three.The rest of the journey was in silence then the car pulled into an underground parking lot and the sunlight disappeared taking all my remaining courage with it. I was hauled out of the back seat and pushed into a lift up to the tenth floor. I walked into a thickly. " Really, just how long?" Oh, since I was about ten." Shit, and I was eleven! You little pervert, you." Well, you love it now." Yeah, I do. I sure do."On Monday, our siblings get home, eager for their new adventure. They waste little time getting undressed as they both have thought of little else for three days."Okay, Noah, are we going to do it?" Oh, I'm ready, I told you I've wanted this since I was ten. See, I'm ready," as he points downward."I see, I see, let's get this thing on you,. I stepped up to her and asked her if she got a good look and if she liked what she saw. She started to turn bright red as I told her that I knew she had been looking in at me on the bed and if I had left the door open or if she had opened it. Next I said that since she was there to help with things her daughter couldn’t do around the house because of the surgery, that I could think of a few things depending upon how serious she was with her offer. She moved her hands down pulling the front. ” he says.“Now lift your knees and spread them apart.”I did exactly what he asked without question or concern. It was normal for this type of checkup in my eyes. As I raised my knees and spread my legs. My dentist pulled my shirt up a little to uncover my panties and belly. He began rubbing my underwear and asked me questions about what felt good and all. As he rubbed I felt his fingers slipping under my thighband of my panties every few passes. Eventually he had my panties completely to one.