ScalaMock: How to mock/stub a method to return different values per call?

Using ScalaMock, I want to mock/stub a class method so it will return a different value per call (order of calls matters).

I can achieve this with mock and expects, but that will force me to verify those calls.

Can I do this with a stub?

Also, how can I say something like "first time return X, and then always return Y" (both with mock and stub)?