Bestfriends really can't be x-gender?

[MJplease]

Well people always say they can and even I thought it was possible, but heres my story;

So I frequently hang out with 2 girls who I can consider bestfriends (They both are like bestfriends for real like they do everything together), and its been going good and I didn't have bf-gf feelings for either of them even though they're both attractive, well, lets call her A, starts to obviously like me because the other girl, B, is obviously egging A on to hit on me or trying to leave us alone, the thing is they think I like B for whatever reason and its kinda making things tense because I don't like either of them like that. :/

[1_21Guns]

I wouldn't say these relationships don't work, they're just complicated.
It's just common for the split second guys and girls hang out together or talk more, they "like eachother".
Just tell them you don't like either of them in that way, and would rather stay friends.
It could be a case of A likes you, and I'm going to presume A and B are also pretty close friends? So maybe if they think you like B, they're trying to get you to like A instead?
Either that, or they're just having one big joke... which is kinda bitchy... but they are, after all girls.
If it's causing a problem, get to the bottom of it and sort it out, don't let it build up, or you'll be sorry later.