Slept with a girl a few times. I want to keep seeing her, but not really trying to be her boyfriend right now. If she brings that up, fine ill think about it, i just dont want to be the one to do so. But i also dont want to sleep with her if shes sleeping with other dudes.

How do you ask someone to be exclusive with you, without them thinking you're thinking of a relationship, and without coming off as needy or giving the wrong vibe and turning her off? Thanks