  We discuss results of our study on AM CVn binaries formed with donors that
never ignited He before contact. For the first time, we treat the donor's in
these systems in the context of a full stellar structure evolution theory and
find that the binary's evolution can described in terms of 3 phases: contact,
adiabatic donor expansion, and late-time donor cooling. Details of the first
and third phase are new results from this study and we focus on generally
characterizing these two phases. Finally, we present our predictions for the
donor's light in these systems.
