Based on what you say, it
appears that he is not
having sex with her any longer and you should stop
thinking about that incident and that woman. You cannot
do anything to stop a man from thinking about whatever,
the way he cannot stop you from thinking whatever you
wish. Maybe he was thinking about
sex with Megan Fox even when
he had not cheated on you. It is a waste of time to
worry what your husband thinks because you can do
nothing to control it.
My advice to you would be to
open your mind and
enjoy sex with him the way both of you want because there
are always
differences in libidos and preferences in
what a man and a woman like in bed. You don't have to do
something if you are really opposed to it or dislike it but you
have to at least try once. Or at least come to some kind of a
compromise. As a couple, it is important that both of you are
sexually satisfied, and if not, it is easy to understand why
the
dissatisfied partner maybe tempted to find sex elsewhere.
You can also ask for help from a
marriage
therapist so that you two can have a grownup conversation.