In bold is what will get my attention. To add on to Marshall's feedback
- The relationship build has to have layers. I know it's a porn game, but do not rush it. I prefer the MC to earn his first H-scene. Start slow with what was already stated. Then go with rubbing, bj, oral, 69. Then after the first climax (from 69) either end it there, or move forward to the first sex scene. Want to go anal first? I don't mind. Or save anal for other family members
- I like reading dirty words during foreplay. Sets the mood for me, but don't over do it
- shower scenes are a must.
- pool scenes
(I haven't played your game yet guessing it'll be there already)
- Looking at the preview pics Mom's visual appearance looks good to me. Not many devs get it right. Well done

- IF possible animated lewd scenes are a must for me (and pretty sure most members here too)
- Harem path (1-3 LIs, 2-3 sluts, 1-4 side-pieces)
- IF possible try to avoid using Sandbox. If you do don't make it tedious. Desert Stalker has it, and it has the right amount of build imo
Good luck in your game. M/S isn't my primary genre, but if other family members get involved I'll be open to give it a chance