In one of her shows, Ellen DeGeneres made fun of a couple who had saved their virginity and their first kiss for when they got married.
Yes it sucked, but whose first time doesn't - besides, they have all eternity to perfect it. Right? It should be a sacred thing for every married couple and no one has the right to judge you or even care how "good a kisser" you are except your spouse!
While learning to develop your marital intimacy skills in your marriage bed, kissing is definitely a vital one of them. Here is a video clip from Howcast with some good tips. how to kiss passionately