Up and down he humped to meet her dancing little butt. After a few minutes she began to slow down. The image on the screen...had changed. It was now a slide show. Her sister's face was now filling up the entire screen. Laura's tongue was out in a lewd expression. Next it switched to a shot of her sister with her blouse open down the front. Since she wasn't wearing a bra, the image showed the beautiful sides of her titties and the valley in between. Jerry was still. " I did, and that's fine." Fabric rustles as he reaches for something in front of him. "I'm going to feed you now, and I'd like you to take the time to savor each morsel. Tell me what it is, if you can. If you're right, there may be a reward."Martin's thumb brushes my lower lip, pressing gently. I open, and he slips something into my mouth. "Bite carefully, if you please. It has a stone."The thing in my mouth is rounded, with a dimple. It has taut, slick skin. I bite down gently, as instructed,. For now though, no such luck.You take your leave of the chief scientist and his lab, and board the elevator up to your personal suite. A soft ding rings out as you arrive.Your apartment is the penthouse suite of a downtown hotel of course, and the lab you've just exited takes up what was once the basements. The room before you is a study in minimalism, with a color pallet of mostly greys and blacks, sparsely populated by furniture, electronics, and short marble statues. Being a classics major. He pushed the head into her folds, rubbing it up through her slit and over her nubbin, then back down, lodging it at her opening. “That’s it, Mark,” she encouraged. “Put it in me. Put your cock in Mommy’s pussy, Baby.” Mark thought he was going to pass out. He pushed forward and felt his mother’s pussy swallow an inch of his cock. If he closed his eyes he could believe he was sliding into the tight cunt of a teenager, but he didn’t want to close his eyes. He stared at his mother, at her heaving.