Hello!
For the last pink star, go through the SMC route, and while you are opening doors, click the top-right corner before you talk to PVC.
And for the last SMC star, do the drunk kissing route (make sure to keep the brooch on!). When you go to the town square with Ginger Brave, make sure to click on the blue tent ten times to get the chocolate box. After that, go after SMC. Once you offer the chocolates, click on SMC's soul jam 3 times to get the ending!
Hope this helped!