missed my chance

I've always wanted to hook up with a girl.  I'm married and I love my husband more than anything - he really is amazing.  We are TTC our first and I am beyond excited to start our family.  But I wish I had a chance to be with some girls before getting married. Somehow I just never got the chance.  Never thought I'd meet my husband so soon.  

My husband only is ok with me being with a girl if he gets to join.  My problem is that I think I will have a real issue seeing him with another girl.  I'm afraid that it can be very damaging to our relationship to have that happen:  I know I'm creating a double standaRd here by saying I can do it and he can't, but somehow it just feels different.  I know it won't hurt him if I'm with a woman, he'll just be jealous! What do you guys think? Honest advice please. I really want to try this out and it might sound selfish but it's a huge fantasy of mine.  Figured why not ask the community.