How to sleep with your sister? ⇐ Incest

[Anonymous]

Hi all. I’m 26, my sister is 20, we’re not related by blood, but we have the same mother. But with all this, we have been living for 7 years in different cities and see each other 2 times a year, and for the last six months I began to catch the thought that I want to try “sex with my sister.” Our relationship is not exactly “brotherly”, we are essentially like “friends”, we can not communicate for a year and then just communicate for another week on all sorts of topics.
But I just don’t know what to do... there are norms and morals... maybe we need to just wait a while and everything will pass. But on the other hand, I would just like to try it
It started from watching porn of this genre and after a while I myself began to dream about it. I understand all the disadvantages of this.
But other girls stopped exciting me, I specifically want sex with my sister. And no, it’s not stupid to fuck and that’s it, maybe not for long, but I would like something like a novel.
I had thoughts of inviting her over and giving her something to drink or adding a stimulant or sleeping pill. But this is wild. Let me clarify right away that I never had such thoughts. Essentially a spontaneous desire, but it hasn’t left my head for a long time. Other girls simply stopped interesting me. People who slept with brothers or sisters, share your experience and give good advice