Guess the best help or advice I can give, if you truly are into trying it.
First off you could start with a friend, that you've known for awhile and had idea's of doing it with.
If you know for sure that she's open minded and willing to talk, then you two go out to a club, or better yet have her over by your place.
After all the regular conversation is over and you feel comfortable, just ask, run the idea by her.
Ask her what her thoughts are on that subject, and if her reply is positive in that direction then continue.
Let her know what you wrote in this post. Who knows maybe she'll have those same ideas as you?
You'll never know unless you try, right? If things start looking good? Have a DVD of the girl girl stuff handy to watch together, could be a major plus to get going with.
If you don't want to go that route, the next thing I'd say try the ad's on the web.
Like ... matchdoctor.com .... adultfriendfinders.com .... or yahoo personals.
Check out those kind of sites, there are a ton of em.
Most of those places even give you connections that are local, by where you live.
I know yahoo does for sure.
Hope I helped some ...