Well said Lucid! It's true, GB, you kinda just open your mouth as you are kissing. It's just a natural movement; a kind of flow if you will. I remember when I was 16 and kissing this boy and he started licking my lips, (I was mortified! ) and I didn't know you were supposed to open your mouth or really WHAT to do. I didn't like that experience though. It was winter and VERY cold outside. My lips were frozen by the time he stopped. ..........sorry, guess that's not such a great memory to share here. LOL Just kinda do as Screwed_Guy says and keep your lips firm, but not stiff and sort of move your mouth, opening and closing as you kiss. (Like you are taking little nibbles of her lips). It's so hard to explain.