The first porn I saw was at a friend's house, they had all the movie channels. I remember the name, it was "Anthony's Desire". All I really remember was that there was a man sitting fully clothed on a bed while a naked woman squatted on a floor rubbing him all over. He was just sitting on the bed staring straight ahead, completely disinterested.
Oh and there was a naked woman in the corner playing a cello.
We had to turn it off because his older brother came home with some friends. Which actually reminds me, I guess technically the first porn I saw was on my friend's brother's computer. He wanted to show me a funny video on it it, but didn't know the file name. He chose one at random, and the thing that we saw was just.....ugh.
There was a man, lying naked on a bathroom floor. His mouth was open. Above him was a naked fat woman, squatting up and down over his mouth. We saw all of this for a fraction of a second before we both ran from the room half laughing half retching.