The Demo I downloaded earlier before I bought the game and the expandion did it already have the expandion there? Or is there something else I need to download?

Yes the demo has both versions, you need to activate them by clicking "Register" in game main menu and then enter your email.

Thanks

Can you play the expansion on its own? Or do you need both parts to play the expansion?

You can play the expansion its own, I believe.

I just discovered that, but thanks for telling me.

Yes correct, in practice the expansion is the same game but with the yuri romances

Yes correct, in practice the expansion is the same game but with the yuri romances

Thanks for answering.