Getting her started

I've been wanting my wife to have a bisexual experience but don't know how to go about it. I've been bisexual since I was 12 and have enjoyed sucking other guys ever since then. When my wife and I got married we fantasized about watching other couples have sex and letting them watch us fucking and sucking each other, but she was not open to letting them interact with us once our sexual fantasy ended with our orgasms. I truly would love for her to experience another woman whether I'm there or not. I think she would love being eaten out by a woman and hopefully tasting her as well. If you have been successful in helping your woman getting started exploring her bisexual side let me know how you were successful and what her reaction to her first woman was like.