If DarkSilver is looking for a way to slow progress with Ann and Lisa, I honestly think he should go back and rework Eric.
Find a way to incentivize keeping him around and holding the friendship together for a little while longer - maybe more voyeuristic opportunities for Eric / Lisa, Alice, Ann, Kira. Olivia? Kate!?!
(I've been wanting to see Eric x Alice behind closed doors I admit) Or Max could blackmail him instead?
I think Eric's role would be a good place to stretch the story and create a couple more plot branches, or "opportunities" I guess you'd call them in-game.
I'm not that creative, but just a thought for
@DarkSilver