I think the cure to this problem is to take it slow! Soon enough you will figure out what girl, if any of these three, are right for you. I think the 15 year old sounds the best, the 14 year old might be clingy, and personally I don't really like that. Ha, I feel old. She might just get quiet when she's high. A good way to break her out of her shell is by example. When you get high dance around to some music and be silly. She'll think its cute, and might follow you! That's all my dating advice, and also,

PLEASE
PLEASE
PLEASE

keep the feelings of the other girls in mind if you choose one! You can keep them all as friends if you communicate and are honest with all of them, unless they don't appreciate that then theyre crazy!