If you want your husband to experience something completely new, try giving him a frenulum orgasm. It will not only be amazing for him, but it will help him understand what it is like for you to experience a clitoral orgasm.
The frenulum is located on the underside of the penis in the Vee shaped area, where the head of the penis meets the shaft. Just like the frenulum that attaches your lip to your gum, there is a thin band of tissue that acts as a sort of attachment between the foreskin and the penis. Whether your husband is circumcised or not, most of the sensitive nerves still remain. Many people know that the frenulum is an especially sweet area packed with nerves but until I read an article at Married Christian Sex, I had no idea a man could have an orgasm from stimulation of just the frenulum.