I Closed... Are we going out?

My friend and I are having this problem since we're in high school.
If/After we k-close, what do we do with the girl after since they automatically assume that we're going out?

Am I able to keep running full game on other girls (not just practice on routines, which I usually do)?

How do I deal with this and what do I do?

Fortunately for you, more and more girls don't believe that kissing automatically binds you to her, or her to you. If you liked the kiss, however, then continue seeing her if you still want to. Go on dates, hang out, continue Escalating.

If you don't want to be tied down just yet, then act like a guy who's fun to hang out with, not like a boyfriend. So, no gifts and touchy-feely cards and hourly texts and what not.

culturedpearls is right... Not every girl assumes you're already dating just because you kissed. But even if you manage to kiss a girl hours after meeting her, the chances are high that she will expect to be treated a little special perhaps. You can't suddenly treat her like a buddy, unless you're sure that's all she's up for. Maybe avoid talking about being exclusive as well... I don't mean you'll tell her you have another date, but do make other plans where she's not included.

When you meet the women and start building Comfort, make sure to drop regular subtle hints that you are seeing other women. If you don't sell it like it in an exclusive relationship, it shouldn't be a problem.