There's nothing to say that hasn't been said before in this thread: renders are good. Like really, really good. Don't know why they keep referring to mom's ass as small, though. She's a definite pawg.
The story is porn logic: son wakes up with a hardon, this entices his mother, escalating sexy times ensue. This could be good or bad depending on reader preference.
But so, so short. Update 4, and it took less than 10 mins to get through. I'm sure adding a fap in would increase the time, but as hot as they may be so far it's just been handies and oral for him, and now a fingerbang for her. Writer does do a good job during the sex scenes to show how much mom is into it, though, so even if she's not getting hers, it still feels like a mutual thing. Kudos to him for that.
All in all this feels like somebody took a whole story, and just plucked out the sex scenes and made a kinetic novel out of them. Like I said, it's pretty hot, but there's nothing really to keep you engaged besides the mother's banging body.