With soaps anything is possible. But I think Max remembers his mom some. I also beleive Nicole is too young to be Max's mom. I was thinking a half sibling. Though Nicole has to siblings already. Brandon and Taylor ( ok I think that was her name). Brandon was fathered by Abe many years ago so it could happen. Will be interesting to see how this unfolds.

I don't think Nicole is Max's mom, but Melanie's mom.

I agree, I'm guessing Melanie's Mom. Mel is acting just like Nicole used to when she was first on the show. I could see them being mother/daughter. I'm also guessing that she was made to think that her daughter was either given up for adoption or died at birth. The professor is a real sleazy character.