The chamber at the bottom of the stairs was much larger than the room above and yet it showed the same tool marks on the walls. I figured the caverns ...had once been some sort of mine. I stood at the bottom of the stairs and shined the lantern around the cavern. Amazingly, the chamber I stood in appeared to be the entry hall of a house constructed underground. The walls behind me and to my right were tool gouged rock; the eight foot tall partition walls ahead and to the left were white-washed. No longer was she like a board, straight down, now her ass curved out and to the sides as her waist slimmed inwards. This she showed off by wearing tighter jeans.My niece knew she was getting a nice body and thought that gave her permission to act like a bitch. How wrong she was.I grew tired of her attitude even though she still teased me. At times she acted as though she didn't really know me, even though we first met when she was just two when I married her mothers sister. We used to be. Once they got down to her knees I let them drop. She stepped out of them. I grabbed her shoulders and stood her up, kissing the side of her neck. Her breathing was a fairly fast now. She was really turned on. “My husband…” she said, out of breath. “What about him?” I asked, similarly breathlessly. “He… I told him…” “What?” “I told him about you asking about my Mary Janes. He said it was obvious you wanted to fuck me. He told me it was ok.” My cock got a lot harder in a hurry. I was. .. He came by to see her but only a mere hours, within a day. From there they "plotted" together so she will came to see him by train over several days.She was just turned 18, as she wanted to wait (which I always said it was dumb), and so they've been able to rent a youth hostel and their parents didn't knew much of it.From there I know how she was dressed as she asked me on this before hand :)She confessed it was the first time she was wearing something sexy, as we bought her a few weeks.