  We measure the inclusive forward-backward asymmetry of the charged-lepton
pseudorapidities from top-quark pairs produced in proton-antiproton collisions,
and decaying to final states that contain two charged leptons (electrons or
muons), using data collected with the Collider Detector at Fermilab. With an
integrated luminosity of 9.1 $\rm{fb}^{-1}$, the leptonic forward-backward
asymmetry, $A_{\text{FB}}^{\ell}$, is measured to be $0.072 \pm 0.060$ and the
leptonic pair forward-backward asymmetry, $A_{\text{FB}}^{\ell\ell}$, is
measured to be $0.076 \pm 0.082$, compared with the standard model predictions
of $A_{\text{FB}}^{\ell} = 0.038 \pm 0.003$ and $A_{\text{FB}}^{\ell\ell} =
0.048 \pm 0.004$, respectively. Additionally, we combine the
$A_{\text{FB}}^{\ell}$ result with a previous determination from a final state
with a single lepton and hadronic jets and obtain $A_{\text{FB}}^{\ell} =
0.090^{+0.028}_{-0.026}$.
