So how about it big boy, wanna fuck your big sis and her slutty best friend? I offered. A moment was spent thinking about it. I filled the silence wi...h the sound of my slick hand running up and down his member, wet with spit and juices. Sure. I want that. He answered, a faint confident tone in his voice. I giggled, excited like a small girl getting ready for a birthday party, or something innocent in a nature like that. My fingers flew all around my keyboard. *Come Friday at noon. Parents. A ferocious mechanical roar, which steadily grew louder and more offensive, tore apart the silent night as he lay there frowning. He leapt up and grabbed his old, heavy StormSpitter from atop his wardrobe, burst out onto the deck and looked about, there, coming in from the west-shore, an off-world make skimmer. The Pyfin were sensitive to vibration and sound, and any local made boats had sound shielding around the engines or used quieter, simpler propulsions systems, like Muemens own. I thrust harder and faster, holding her hips so she was powerless to do anything but come. I had been feeling my orgasm build, first from rubbing her clit but now faster and nearer.As she lay beneath me in her orgasm, I felt the rush start, felt the pressure of my cum build until I shot it into her. I arched and cried out and thrust deep, deep into her, getting every drop inside her. We slowed to a smooth easy rhythm and I finished pumping the rest of my cum into her dripping pussy, feeling her. The way it should be. The way it was with your grandfather and me."They both shifted uncomfortably; personal discussions among them were rare, and this was uncharted territory.She looked up sharply, now fully focused. "But it's not right even so. AC"—another departure; she rarely used their Eden Rescue nickname—"should do this together. And so you will. Carlie, you're not staying on Earth because of me." Grandmother—" "Amanda—" they both tried to speak at once."It's simple," she cut them off..