Man, you sound like a pretty radical dude.
If I were in your shoes right now, it would be freaking awesome!
But seriously now, what I think is that the girls simply want some spice or something. Something different. Which may lead to one day you will find a note and it will say "The novelty wore off" or something and you will be left only with your little sigil.
Or you know, the girls could be even freakier than you.
Closet Wiccan/Satanist/etc. You have heard these kind of horror stories, right?
Anyway, that redhead sounds like a good deal.