It would be a treat if this was a nice game instead of the usual corruption/incest/harem. I like those genres too but there is a lack of games that have a good feel to them. Here is how I see this playing out in a "nice" story.
- The "mom" does not cuck or cheat on the husband but actually teases her daughter and future son in law a little, nothing dramatic or over the top just enough to show that she likes the MC and tries to make her daughter a little jealous.
- The "dad" actually likes the MC and wants his daughter to get together with him. In fact it is the dad playing matchmaker and trying to set the relationship up, but he also knows that his daughter won't do anything that her mom and dad want, so they (mom and dad) are going to play at making it seem like they don't want to see the relationship blossom.
- Melissa doesn't really know what to do as she is hoping to find "true love" and doesn't know if the MC is right for her or not.
- Liz is genuinely trying to help her friend out but ends up having feelings for the MC.
- The MC has to navigate the relationship with Melissa/Liz and see where things end up. In the process of the game there are lots of sexy times with the MC and Liz or Melissa.
-Ends with a wedding (Liz or Melissa)
I get the desire, but at the same time I'm not here for a romance simulator. Don't get me wrong, I
love romance in my porn games, but I
need porn in my porn games.
Limiting the MC to two potential love interests and building a relationship with them over time is going to cut down on the actual sex content, unless the LIs get right to fucking which will instead cut down on the romance angle.
Building the game as you suggest, but including sex content with various other girls (fwb, married women, casual hookups) before the MC and an LI become official (end game) is the best of both worlds.
Also gives the chance to include a variety of different LIs.