Elliot had no idea that having someone use their mouth like that would feel so amazing. He just wasn't sure if it was always like that or if his sister was just damn good at it. As she continued to suck his cock after cumming, he moaned under his breath. It seemed she knew that his cock would be super sensitive right now, and he loved the way she was taking advantage of that. He let out a much louder moan when she pulled back, sucking on the head before her mouth popped off of his cock. He smiled down at her still as she slid back up into his lap, feeling the warm wetness of her folds press against his cock once again. "Mmhmm. I really liked that, big sister." He said with a nod. His cock had softened slightly after cumming, but feeling the shaft of his erection pressed up against and inbetween the tender pink folds of her pussy was enough to get him fully hard again almost instantly. "Does it always feel that good?" He asked curiously, meeting her gaze as he began to grind his cock against her pussy again.