Well as far as I've heard, it's not addictive at all. The reason some might call it addictive is if they just want the feeling so badly, but it's not really a physical addiction. I've never felt an urge or anything. Everyone has a diffrent 'first time'. It would be wrong for me to say how your first time will be, but if I can suggest something, it's never to do any drugs, but if you do, do it when you're relaxed, in a good mood, and with people you trust. This goes for pretty much everything. Most drugs just intensify your feelings, so don't do it if you're not comfortable. also; Baby steps