I took ~2,5g mushrooms with an IEI friend yesterday, and it was one of the most intense trips I've ever had. I almost felt like we were the same person, as if out thoughts were somehow magically connected.. We literally ended each other's sentences, spoke similar things at the same moment, acted the same way etc.. .
E.g. in the beginning of the evening we were at a forest rave but neither of us really felt like dancing so we just sat on a rock watching others without speaking for over an hour. I got some weird social paranoia anxiety attack, totally forgot why I had ever liked shooms and decided I should never trip again. Being trapped in a negative thought loop my trip started turning real bad, so I turned to her and asked her to come walk with me. She did the same thing to me at the exact same moment, using exactly the same words. So, we stood up everyone else. While wandering around the forest she started talking about how she, too, had gotten anxious and socially paranoid and thought she shouldn't ever trip again. It was damn weird and I thought to myself that she was really the only person I could be with at that time as she already knew how weird and crazy I was and that she wouldn't judge me for that or take my fuck-ups the wrong way. It took about three seconds for her to say the same thing about me aloud. The trip lasted for god knows how many hours, and was like that pretty much all of the time. We even called ourselves "a shroomy unit".
It's clear that our information metabolism styles and preferences are very dirrerent (delta vs. beta) and there have been some serious communication breakdowns in the past, but I think being an introverted intuitive feeler and disconnected from the "real" world in a similar way as I am allows her to understand me in a way that would never be possible for an E/S/T type.. Being with her is a lot easier than being with other IEIs, tho, and I think it's due to us having lots of non-socionics related similarities; we both have weird fucked up extinguishment/superego parents, we're both E4 sx doms, we come from upper-middle class families, went to the same school, share a similar taste for music etc..