Ok i've been casually hooking up with this girl for a few weeks now and she is pushing more and more for "outings" rather than her just coming over. This is one problem. How can I keep this thing on track so i'm not obligated to take her out on dates or to partys with me?
It doesn't seem unrealistic, she sent me a text once that said
"Is that all you want from me! CRAZY ANIMAL SEX. Okay thats not that bad lol"

So what do I say/do? I don't want to be an insensitive prick and be too direct with things but I also need to make things clear so that i'm not leading her on.

Second problem was I brought her hiking with me the other day and she starts talking about "Oh I wish we had a camera", "I'm totally gonna bring a camera next time". Loosely translated; "I'm gonna take some pictures of us together and broadcast over facebook that you're mine ". I'm afraid she's going to start marking her territory on my leg...That could really do a number a good pair of pants

I'd say if youfind her of value make a move for a more steady relationship if not tell her like it is

but I know next to nothin about this kinda thing so I wouldnt know lol

I'm gonna be ruthlessly honest here...She hasn't got much more value for me other than as a sexual partner. And I don't think that bothers her, but I think I may have lead her on too much into thinking more could possibly come of this. I haven't said anything that would make her think that, but I have been probably seeing her more than I should for this kind of fling (2-3 times a week)