So I (25m) met a girl (24f) a few weeks ago through a mutual friend. We hit it off right off the bat, both physically and emotionally. She is fresh out of a shitty long term relationship, and I have gone through her same situation within the past year.

At first, both of us were very high on each other. We hooked up the first night we met, and have continued to do so just about every time we hang out. I really like this girl, but because of several circumstances I just don't see us getting serious. I'm trying to get my life together at the moment and don't see a relationship being good for me; and her life seems to be kind of a mess as well so I just don't think we'd be good for each other.

The sex though, has been phenomenal. I'm a well endowed guy (for lack of a better term) and have always been told that I'm great in bed. I truly feel that sex is about pleasing each other, and there is nothing that gets me higher than spending an entire night making a girl get off over, and over, and over again. So naturally, we are both rocking each other's world, and I've never had such an instant "sexual connection/compatibility with any girl I've been with before...

So my question here is, how do I keep this thing going without letting it get too serious? I've realized from the start that I'd probably just be the rebound guy, and I think I'm ok with that. How do I keep her coming back for more, while not letting either of us get too emotionally invested? She's going through a tough time, and I want to be there for her, but should I not be so that feelings don't develop?

It's been quite some time (since college) since I've been in this type of position. But I've been dying to find a girl in which I could kinda pull this type of thing off with. So I'm not really sure how to handle it so any help would be appreciated.

TLDR; Met a girl, I like her, but we just aren't right for each other at this point in our lives, sex couldn't be better, how do I keep a good thing going without letting it get too serious?