A Deaf-Mute Couple

A young deaf-mute couple got married. Initially they made love
with the lights all on, because they would not see what one
would tell to the other using the sign language otherwise. Once,
the wife signed, "Let's try to make love with the lights off?"
The man replied, "Ok, but how will you know when I want to make
love to you?" The womam signed, "If you want to make love to me,
just shake my left breast once, and I will know. If you don't
want to, shake my right breast once." The man replied, "Alright!
And if you want to make love to me, shake my penis once. If you
don't want to make love to me, shake my penis about fifty times,
ok?"