I have a friend crush that's getting a little out of hand.

So I've had a little crush on my friend (a girl) and I didn't think a lot of it at first. Now it's getting a little extreme. I was just sitting next to her tonight and I wanted nothing more than to just put a hand on her thigh. Or touch her foot with my foot. Or grab her face and kiss her. I just really wanted to touch her. It drove me crazy. I hate thinking things like that because I feel like a major creep. I'm not trying to be creepy. I just really...desire her I guess. She's very straight and a tad on the religious side. I think it's just because I've been questioning my sexuality for a while and she just happens to be a girl I'm close to. I'm trying not to think too much of it. I'm not sure how to go about fighting this off.