
Ellen could feel that her nipples had gotten hard as a result of what her son was doing to her breasts with his hands, and she was long past feeling any shame or guilt about what they were doing. She was getting the kind of attention she hadn't experienced in months, and she simply didn't care who was doing it, or why; all she was certain of was that it felt good-good enough, in fact, that her clitoris was achingly erect and her pussy was wet and developing the empty sensation that all but demanded she find something hard to fill it. Remembering what she'd seen of her son's cock, she felt a mild thrill run through her body at the idea of having the building fires of her lust quenched by him, and started wondering: did she dare let it happen?
When Robert noticed an aroma much like the one he'd detected with Carla, he initially wondered where it was coming from; it wasn't the same, or even close to what his sister had smelled like… and besides, she was several feet away. Then it hit him: what he was smelling was his own mother's juices, and that was enough to tell him that she was getting excited-by him, and what he was doing! He'd been about to use his mouth on Carla when he'd learned what she smelled like, but he didn't dare suggest anything like that to his mother… then he started wondering: instead of using his mouth like he'd done with Carla, would it work if he used his hand, instead?
