  Higgs boson mass measurement at $\sim 125$ GeV points to a high scale for
SUSY specifically the scalar masses. If all the scalars are heavy,
supersymmetric contribution to the leptonic $g-2$ moments will be significantly
reduced. On the other hand the Brookhaven experiment indicates a 3sigma
deviation from the standard model prediction. Here we analyze the leptonic
$g-2$ moments in an extended MSSM model with inclusion of a vector like
leptonic generation which brings in new sources of CP violation. In this work
we consider the contributions to the leptonic $g-2$ moments arising from the
exchange of charginos and neutralinos, sleptons and mirror sleptons, and from
the exchange of $W$ and $Z$ bosons and of leptons and mirror leptons. We focus
specifically on the $g-2$ moments for the muon and the electron where sensitive
measurements exist. Here it is shown that one can get consistency with the
current data on $g-2$ under the Higgs boson mass constraint. Dependence of the
moments on CP phases from the extended sector are analyzed and it is shown that
they are sensitively dependent on the phases from the new sector. It is shown
that the corrections to the leptonic moments arising from the extended MSSM
sector will be non-vanishing even if the SUSY scale extends into the PeV
region.
