What is the link between Laguna and Squall?

I mean, Kiros says that Squall looks like his father, so is Laguna Squall's dad? And is Ellone Squall's sis? And is Raine his mom????? i'm sooooo confused

These questions are answered this topic (Thread 18935) and this topic (Thread 19254). I don't blame you for not catching it though, because the titles on those threads aren't exactly the most helpful. I am going to close this one though.