There is no stupid SWIMing on bluelight, nor my pet X.
You don't get addicted to something just like that. An addiction grows, if you use morphine twice in 2 days you are not suddenly going to become an addict to morphine are you? No. But will you become more familiar to dosing on multiple days and used to the effects? Yes.
Yes, he is sure. FlippingTop knows his shit. If you really enjoy it you will probably have a little euphoric recall and WANT to do it again, that's how addiction starts at the very beginning, but physically addicted? No way.