Timberwolf's got a valid point.

You've also got to be honest with yourself as well.

Is this something he will accpet and want to share with you?

Does he have some preconceived notions about the lifestyle
that would make it unappealing to him to share even with
you?

The one person you have to also be most honest with is
yourself. Recognize who you are and what you need most
in a realtionship.

I don't know that anyone can give totally to another unless they
know just who they are inside and what their own expectations are.

Maybe sitting down and openly talking about what you need and hope
to find for yourself would be the way to go before he'd begin reading
your most intimate thoughts.