The first time I got properly stoned...in a car, at night, listening to the Chemical Brothers' "Come With Us." Completely immersed....felt like my head was going to explode (in a really, really good way) at the buildup.
My first proper MDMA high. Was laying on a couch, thinking to myself "this isn't working." Then someone put OK Computer on the stereo and with the first note of "Airbag," an electric jolt of pure euphoria shot through me so hard, it was absolutely incredible.
My first Ketamine experience....K-Holed so hard, but felt not the slightest bit fearful, I went somewhere else....I remember flying over a desert and meeting a deity, but that's about the extent of the memories!
...and the piece de resistance, my first shot of meth...oh, what a world of trouble and fun that started! 18 years old, hadn't done meth that often before. Sitting in a car with my girlfriend (the older seasoned user) at the time, on top of a cliff, looking at the ocean below. She was doctoring me...saw the blood enter the barrel, she pushed off, pulled the needle out and holy shit, the breath was sucked out of me and I felt like I had been hit with a sack of very euphoric doorknobs. My vision actually flashed completely white for a second, never had that happen since...the electric euphoria and tactile sensations running through me were incredible. This was 10 years ago, I think that moment set up a lifelong love of amphetamines and the needle...woops, haha.