  We study vortex solutions in Abelian Chern-Simons-Higgs theories with visible
and hidden sectors. We first consider the case in which the two sectors are
connected through a BF-like gauge mixing term with no explicit interaction
between the the two scalars. Since first order Bogomolny equations do not exist
in this case, we derive the second order field equations. We then proceed to an
${\cal N}=2$ supersymmetric extension including a Higgs portal mixing among the
visible and hidden charged scalars. As expected, Bogomolnyi equations do exist
in this case and we study their string-like solutions numerically.
