She was wearing a pastel sundress and was engrossed in the book she was reading. As she read her legs had fallen apart and I got a nice glimpse of her...yellow cotton panties up her dress. I could see they were darker where they stretched to cover her pussy. I realized that she was wet. My penis stirred in my pants and began to grow. She startled as I came up and her legs came together blocking my view. She looked at me as I came to the top of the stairs. She had a cute mousy look that was caused. Then she realized that she liked the feel of his hands massaging her tits. Before she knew it he was stark naked pulling her over onto his lap. She could feel his cock against her ass cheeks as he kept playing with her tits. Then he began to kiss her nipples and suck them. She really loved this even if it was with her brother. He then told her "Open your legs. Let me see your pussy and rub it for you. Let your big brother teach you to be a woman." As she spread her legs his mouth kept sucking. Made happy noises. Kissed again. Then I kissed his nose. "Let's do something for breakfast. And I need to hit the head." Me too. But I can go over the side." You're naked and it's cold out there." I'll scan to see if there's anybody around and I'm gonna be right back."Yes, my husband is nude. And Yes, I watched his naked butt walk to the ladder going topside. He opened the hatch, took a step up, and then finished going topside as I backed into the head. Marine toilets. Pull this. Pump that.. I was trying to figure what to do, but before I made any decision about her I would try using the chamber, of course.Taking her in my arms, I unlocked and entered the solid wooden door to the right of the sex room, to my own dungeon. The air there was cooler and the scent of wood and leather was all around the place. Crossing the polished wooden room, filled with devices, apparatus of all kinds, the St. Andrew's Cross on one side and a gibbet cage hanging from the ceiling at the other corner of.