Are you interested in "better oral pleasure" only or are you looking to "spice up" your sex life in general? As far as oral goes, you could gently fondle his balls with one hand, and don't just lick in one spot such as the pee hole. Lick all around the head and slide your lips sometimes up and down the shaft. Don't try to make him *** so fast. Make it last. Lick and suck his balls individually along the way. Beyond oral, many men harbor sexual interests that they are reluctant to present to their wives. Who knows? Maybe your husband has something in mind that you could do together that you haven't done before, but is not way out either. Many men would like their wife to surprise them and give them a good handjob, for instance, in the living room without warning, for example.
Never thought about the flavored edible oil (didn't know they had such a thing)....I will have to look for that. Thanks.
Try a flavoured edible oil, because the more you're visually enjoying it, the more pleasure it should add for him.