The feeling that tingles through out you in the first kiss (or each and every one).. yeah, that's lust.
Often confused with love.
Lust is not love if you don't wish to anything other than have sex with someone.
The feeling between the two of you is so magnetic and strong that you can't contain it.
It's not just sex. It's the want and the need to be physically close to someone that you feel so passionately about it's unreal.
DO NOT confuse with love if you know what's good for you.