I dont know what to do..

Two girls, one I have no love feelings for, but she is a great friend.
The other, I love deeply, but I dont think she feels the same way...or at least im not sure.

The girl I dont have feelings for, but is a great friend likes me...a lot. She wants to do some "things" with me..and it would probably be great experience. (Ive never done anything before. Not even a kiss.)
The problem is, id feel like I was cheating on the girl that I "love", even tho we arent anywhere near getting hooked up. Or maybe I just feel like its wrong. Or heck, maybe im just nervous.

I just dont know what to do.

Should I go for my friend and get experience, and please her?
..Or should I keep going for the one I love?
..Or..both? Would that even work?

Help please...

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Serious.