She was naked underneath. This was my first time seeing hernaked, and I was instantly jealous, for her body was svelte andgraceful, her skin smooth an... unblemished. She had her back to me at the time, and I could not help but admire hersleek thighs and round bottom. I had watched her cane my bottom just afew days previous, and I suddenly knew that my bottom, though alwaysplump and attractive to men and my only real vanity, as I am resolved toplainness in other areas, was nothing as perfect. Doing stuff?”“Yeah,” my granddaughter replied, “he made me get an IUD cause he didn’t want me to get pregnant...”“Sounds reasonable ... guess that means you weren’t using condoms?”She shrugged, appearing less uncomfortable than I would have expected by our conversation. “In the beginning, yeah ... but after a while ... no...”“He was your first, wasn’t he...” I said without asking a question.“Yeah...”“Those are the ones you’ll always remember, but trust me when I say the pain, the loss, that all. " Her large tits jiggled invitingly through her blue halter as she jumped up from her knees and stepped out of my room and into the hall.I pulled my pants up, buttoned them, and buckled my belt. My eyes followed my sister's ass under her black miniskirt the whole time, until she disappeared.Maybe I should back up and explain a little. My name is Clint. My sister and I are twins. We've always been close, and for a long time we shared rooms. To tell the truth we've shared everything, even each. .. John Smith."This time he was stirred from his concentration, and he looked up and around, to see who was paging him.He had almost turned fully around when he saw her, standing 30 feet away, and looking as beautiful as she had been the last time he saw her 18 months before. She had a small smile on her face, and it was evident that she was nervous as the smile came and went several times in the 15 or so seconds that he stared at her. Unconsciously he had grasped the spoiler on the rear deck.