I really like my friend's girlfriend. Need Help!

[WTCANTFW]

Okay so basically, a couple months ago, my friend invited me over to hang out at his place with him, so I went over and we were having a good time and what not. Eventually he invited his girlfriend over and she came and we were all just watching t.v. within the first 5 minutes of her being there he buggered off on his own leaving her alone, to go play video games, so me and her just casually talked untill, I guess my friend got tired of us and kicked us out, so we figured we might as well just hang out for a bit more, leading to us staying up till 3am. Any ways now its months later and me and this girl hang out on a regular basis, more than him and her. Alongside this its very apparent that she is interested in me as we always flirt and what not. Anyways last night we went to stay over at her friends house and we ended up sharing a bed, and it was super awkward for me in this position to not do anything with her, same goes for her. So really what im trying to get at here is that, we both like eachother and I dont really know how to talk to her about it, like I know her boyfriend semi-mistreats her as well but she still sees him, and I just kinda want to tell her that she shouldnt be with somebody that is going to be like that, but im afraid she might think that I might just be saying this for me to have my way... so if anybody could help me out and give me advice I would really appreciate it.

[BuryYourFlame]

If he's really your friend you shouldn't be going there, and I think you know that.
If he's not really your friend and he's really a bit of a dick so to speak, then it's still wrong to pressure this girl in to deciding between you two. All you can really do is be there for her and hope that she sees you might possibly be a better option. It sounds like you may have a connection with this girl but in the end you never really know what her intentions are until she acts on them so be careful.
Continue just as normal for now, but don't do anything you may regret later. If you two do decide to do anything make sure that she's broken up with him first.

[WTCANTFW]

You know what I think you are right, I havent really got an input on this yet, but I'll take your word for it. Thanks a million!

[Melodic]

Would you rather still have the friend or have the girl? Once you think about which one you'd cry losing the most, you have your decision. Think wisely.

[ImagineRepublicCity]

If he's really your friend you shouldn't be going there, and I think you know that.
If he's not really your friend and he's really a bit of a dick so to speak, then it's still wrong to pressure this girl in to deciding between you two. All you can really do is be there for her and hope that she sees you might possibly be a better option. It sounds like you may have a connection with this girl but in the end you never really know what her intentions are until she acts on them so be careful.
Continue just as normal for now, but don't do anything you may regret later. If you two do decide to do anything make sure that she's broken up with him first.

Yeah, definitely what this guy said. You don't want to be cheating or anything, nor do you want to break your connections. Let time do it's thing.