Excel 2013 - Power Pivot: Pivot table not showing related fields

Hi All:

In Excel 2013 I have 2 tables and I built a model with those 2 tables (I used the function 'Related' in one of them and it worked so the model it is Ok). However, when I built a Pivot Table for this model the relationship didn't worked:

- If I add a field from the first table to the Pivot Table and then I add a field from the second table, then for each value in the first table all the values in the second table are listed, so why I don't see just the related field?. Do I need to do something else?. By the way, this is my first use of Power Pivot.

Thank you very much

Regards

Carlos Negroni