Well, dude you said she is a " chruch girl " so, it might be hard to get her and you to be friends with benefits,
So, my advice is to try and isolate her, or maybe have a day 2 with her, be alpha the whole day, don't buy her things, don't compliment her and such, unless you have to, your goal for this day 2 or isolation is to say somthing which says that you want to have a greater relationship with her, but not an actual relationship, but don't sound like an ass when saying it
Your goal is to kiss close her sometime during that day but don't go further than that, and don't hold her hand or anything after it, because that will suggest that you do want a relationship, so, the next time you are with her after that, just kiss close her again, because since she is a " church girl " it will be harder to go any further with her, because " church girls " are usually very innocent, and think of things more than it needs to be thought about, for example one kiss close for her would count for about 5 kiss closes, so you will have to play this one VERY SLOW
Or, you could find another girl, that you could escalate with further and faster, I would probably do this, other than going for the church girl
Hope this helps,
Peace,
Troyden