Duuuude, what happened to the Doritos body-shots thing from Cedius?
I would make myself a little scarce for the moment. You've had a comfort night. From #2 it sounds a bit like she is slyly training you to be that comfort guy by positively reinforcing your behavior. "Hey, this was great. When guys that want to get in my pants come over, I usually get annoyed, but you're so easy to deal with." She is getting the comfort without having to do anything. "Hug buddies." That is for boyfriends and best friends, and you are neither.
(There is nothing wrong with that; I have a girlfriend, but I'm just saying it doesn't sound like what you want...)
When you do see her again, keep escalating to break that sexual barrier. It is okay if you don't feel comfortable doing it on her period, but if so, make sure next time you see her it isn't a problem.
If you want to be seeing several chicks simultaneously, I'll paraphrase some advice from Blondguy I saw elsewhere (I hope this is accurate)...
refuse to discuss the details. I think this girl is playing this out to see if you drop the other(s), but you don't have to play that way. Not talking about your other partners (other than making sure she knows it is an open relationship) is requisite to success.
The body shots will come with time, i cant pick on a chick that's bleeding - it will be a massacre!!