Is it possible to declare a relationship as eager loaded?

[shaulbehr]

I know you can use .Include() on a query to eager-load a related object.
What I want to do, though, is declare a relationship so that it always eager-loads, e.g. If my Thing object must always have a related OtherThing that I want to have access to:

modelBuilder.Entity<Thing>(entity =>
    entity.HasOne(t => t.OtherThing)
        .WithMany(o => o.Things)
        .HasForeignKey(t => t.OtherThingId)
        .EagerLoad(true); // or something like that

Is it possible to achieve this somehow?

[anpete]

See #1985, #2953