The three girls you currently see on the game, belong to the COMMON (1 Star) tier.
I'm currently working on the next two, on the next tier, called RARE (2 Stars).
Rare girls give points x5, so you definitely need some of those around, to help you advance faster.
On the other side, all girls on Rare and above tiers, will need some time to digest after playing (from 2 mins to half an hour, depends on tier) . So, you will end up playing with the three Common ones many times while your other fatties are taking a nap...
So, for the next two Rare ones, I'm making
Ali from my Ali's Expansion sequence
https://www.deviantart.com/paploman/art/Ali-s-Expansion-1-724095258
and Jessica from Jessica's Jolting Boost story, written by Jessica herself who looks exactly like that.
https://www.deviantart.com/paploman/art/Jessica-s-Jolting-Boost-1-773658822
One of them will be available to everyone, to get her by scoring some points on the game, and the other one will be only available to patrons, until the beginning of June. After that, nobody EVER gets that girl, so that makes her highly collective already. This is my way to say "Thank you for helping me beta-test the game!".
On the next post there is a poll for you to decide which one of the two girls you want as your "Beta-Tester" reward.