hahah. On a more serious note...I think that because you turned her down this time, she's going to want you more. From what you said, it seems she doesn't get turned down that often. If you do regret turning her down this time, I'm sure the opportunity to hit it will come up again. Girl sounds a bit crazy tho. Also Remember even if she's eager, protect her beaver...or rather since she's always getting some...Put a condom on your dink before you dart it in her sink LOL
you're just talking about double teaming her(which is fine), but to properly run a train you definitely need more than two guys.
Man eff it. She prolly had tons of guys run through that shit. You don't wanna go through that loose slutty ass pussy. Eff it, just be friends and get a better one later on. You'll get a chance later if you are a "player" that you describe yourself to be. And I'm guessing you are around 20 years old? If you are a virgin then don't lose your virginity maynnn!
If you can get it from so many other girls and your friends with her, you might as well keep the friendship and get some from another girl. That way you win twice... (ok, that sounded gay)