I would say the game is overal pretty fun though i would say it would be cool to potentially sleep with certain characters more than once. Like calling Chi, Franklin to come over, or the landlord when the rent isn't even due to have some fun with.
And lastly this is more of an idea for when claire gets pregnant. Since you have to pay money for a healthy pregnancy, you can add something very similar but with having a healthy Baby. Money drops automatically but depending on who the father is, they could give you a random amount of money everyday to help you, similar to when paul comes home with a paycheck.(This could maybe lead to Paul accepting his life as a cuck).But not every dad is the same, so not everyone will help you with money.And the more kids you get the more money is deducted.
These are all ideas for you but you can do whatever you want. Thanks for reading my long message, sorry about that😅