I couldn’t believe that not only was I getting a BJ from Marie, my big Sister, but I had been seen getting it, and gotten away with it.After a few m...nutes more of Sis’s hot mouth I couldn’t stand it anymore, and had to either shift gears, or cum in her mouth. Since I wanted to see how far I could get, I pulled her off me and dropped to my knees, and started kissing her again. Sis was clearly red hot and horny, and I felt pretty sure that unless she suddenly came to her senses, we were gonna get. I pressed the head of my dick against the moist opening and watched as I slid effortlessly inside “Ohhh! God, that feels good!” I moaned as my hips met her ass for the first time. I pulled my cock, coated with the musky juices, out of her more than ready cunt. Grabbing her hips, I plunged hard and fast, bouncing off her ass, pistonning in and out as fast as I could, her upraised ass meeting my thrusts with a slap of flesh on flesh.“Get up on your hands, Karen! I want to play with those. Grandpa Flynn always thought that was cheating but he wasn't surprised because kings and such didn't play fair anyway. He was impressed with a knot that couldn't be untied.Another book was translations from something called the Emerald Tablets of Thoth. Now, Grandpa Flynn didn't know anything about Emerald Tablets or where Thoth was but the reading was interesting. They also had a picture that looked a lot like the Gordian knot. The translation said it represented the three levels of existence.. “Just a load of spy holes for keeping an eye on them and reporting back,” Simone shrugged.“Trusting society,” Arch said with a wry smile.“Very,” Morgana agreed as we moved forward, checking each room thoroughly in turn.The level was deserted, though we left a couple of Æsir on guard just in case as well as sending up a signal for the other groups to start filtering down as the Drow had sealed every other doorway and were ferociously defending any breaches in them.We descended to another floor.