ya
Yes, as long as you like each other!
It means he will attempt to bite your lip .... I assume.
lip kiss not harmful to health
no it only reduces calory
No, you cannot get pregnant from kissing.
Kissing
They're VERY immature.
Yes
Ask your partner. Some like it, some slap.
No it never has itssomething almost everyone does!
Of course not! The only way of pregnancy is to have sex. there is NO WAY that kissing could cause pregnancy :) so don't worry!