I have the following setup: classes C1, C2, C3

C2 has reference to C1 and C3, both in class and in its db table

class C2
{
  public C1 C1Ref {get; set;}
  public C3 C3Ref {get; set;}
}

I would like to have a property in c3 to c1 without updating the database mapping, is this possible and if so, how?

class C3
{
  public C1 C1Ref {get; set;}
}