First off, this is normal. Few people are 100% hetero or homosexual. It's a whole spectrum. Most of us are mostly one thing, with varying amounts of the other. For some reason society seems to be more accepting of this in women than men (or maybe that's just in male-oriented porn!). But there's nothing wierd or wrong about it.
Is this related to the marriage issues you've mentioned in a separate topic? Is this why you feel like you are not fully sexually satisfied by your husband, or the other partners you've been with?
It is possible to find like-minded people through contact magazines or websites. However, with your marriage apparently having problems right now, this may be a bad time to start playing with other female partners, even if it was with your husbands knowledge and permission. On the other hand, there's nothing wrong with having the fantasy, and describing it to your husband while you are having foreplay and sex, if he's up for it - it's very likely the fantasy will turn him on!
it is normal...what is normal. we are who we are and we want what we want. by always wondering if something is normal we try to compare ourselves to everyone else. don't wonder to long about what you may want. finding someone whether you are straight or no is never easy. take you time and do not rush.