Well, if your husband is in reality already big enough for you, and he satisfys you, then I don't think some adventures with others are going to be a problem. It really boils down to how secure your relationship is with your husband.
My wife has been with many men before she ever met me, and after with us being in the "lifestyle". And it has never presented a problem with jealousy or my being replaced. It has in fact amplified our sex life.
But just take a good look at your sex life with your husband, and talk with him about it.
BTW, very sexy photo. You would indeed look great "pinned" between two guys
Have fun and good luck!
A&D