system
A chat on 4chan
human
Interesting theory OP, will look into this. Do you keep a dream journal? Keeping one made my dreams way more vivid, highly recommend it. To me it seems like your mind showed you what you needed to see/experience at that time, dreams can be fucking powerful. 
Also did you just jerk off to porn or your imagination? I think imagination with the right intention would be the best way to induce such dreams. E.g. jerking off as some kind of ritual to interact with a different realm or higher powers.
Anyway thanks for sharing, very happy you had such an insightful experience.
gpt
it was me remembering porn that I liked, from my memory. I need to get a dream journal.