Best Online Bingo

i don't know if this has been posted , but i have a question about the movement of your lips when you're kissing, not frenching or anything just regular kissing. Like when you kiss somebody and you're going to continue for a while(make-out i guess) how do your lips move? back-forward motion? up-down? circular? sorry if i'm not being clear :/ but any help is appreciated

Thanks again