So I updated the OP with a version that has fixed variables so that the threesome can get triggered, bigger text and some other cleanups here and there. Should make for a better experience for someone who hasn't yet played it. Probably not worth a replay for someone who already has (unless it was a while ago).
Can't make an Android version, though. Renpy asks me to download JDK so I can make Android builds, and after downloading both x86 and x64 versions, it still doesn't recognise that I have it installed. Anyone who has previously got it to work is free to take at a crack at converting the game, obviously.