Try asking on the Recruitment & Services subforum for a free proofreader, you never know if you might find someone. Still, the dialogue and word choice can be improved later, what really needs to be ironed out is the overall story or lack thereof. Why does the mom send the mc to the pool as soon as he gets back from college? Why does she tell him to look at the jacuzzi while she makes dinner. This is a reunion of mother and son after... I'm not sure how long, years, since he left for college right? There should be emotion and character development, exposition right at the start. Instead we have a time skip while the main character sits at the jacuzzi. It's bad pacing and doesn't make much sense. Instead of going from 0 to 100 with her showing her pussy at dinner, why doesn't the mother have the mc help cook and maybe she leans over and flashes her panties or something where she has plausible deniability. Although, for her domineering attitude, maybe she doesn't care about deniability, so maybe that's a bad example. It just seems strange how cold she is welcoming him home, having him go outside, and then showing her pussy to him at the dinner table.
Use the time to advance character's goals, in this case it's the mother seducing the son. This would still be too early in the game for that imo but it would be better than what we have. Why is the mother so eager to seduce her son? Why does she not care about the taboo of incest? These are all things that should be explored.
