ya
no it only reduces calory
No, you cannot get pregnant from kissing.
Kissing
They're VERY immature.
Yes
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!
No
Yes.
Only if she is infected with HIV. If it is just a busted lip then no, you cannot.
Kissing on the lips is a sign of affection