The only way I ever could reliably fuck anything that appeared supernatural was through wet dreams and lucid dreaming. Here's my techniques:
>Get in the habit of doing reality checks every day (pinch your nose and breathe, look at your hands, look at text on walls, etc)
>Before each night, I'd do a ritual where I'd do whatever I believe I needed to do to attract lustful spirits. I'd put on some summoning garbs, light some incense, write sigils on paper then fold them into another symbol, etc.
>Most importantly I'd jack off each night before bed, but never reach ejaculation. I'd also watch pornography of whatever creature I'd want to fuck that night. I'd get on the edge but not for too long, after which I would chant something along the lines of: "I will fuck you. I will have sex with you, in my dreams. And when I dream this night, I will know it's a dream, and fuck you all the more."
>When in bed, I try to "have sleep paralysis but with my eyes closed", meaning I try to still feel my body and look around, but with my eyes closed to avoid actual sleep paralysis terrors. This is sometimes too hard to do so I often give up and sleep the usual way.
>After waking up, immediately write down what happened in a journal, lucid dream or not, wet dream or not. also draw a sigil/symbol to associate with different creatures you fuck, so that you can remember subsequent meetings with the same creatures.
So that's my method, at worst I had 1 wet dream every 2 days, needless to say I had to change my bedsheets often. Even though these aren't literal supernatural experiences, I'd say it's close enough, and it feels so real when it happens. Some stories include a ring girl coming out of my closet and riding my dick while I was in my bed, only to take charge and pin her against a wall. Another time I was surrounded by what seemed to be succubis that all bended their ass towards me and I fucked all of them one after another. Also taking zinc supplements help but don't take too much.