well first off a million things coulf of gone wrong and since were not there we can only take a guess at helping you out...
i agree with chief,
you may of not got her comfort levels up perhaps....but you may have but didnt make a move........think about it???
cause in my experience "not to many girls" who want it or even slightly want it pull you into the bed get on you and start doing shit with you...MOST the time the girl puts it in the guys hands to make the move, cause going through her head could be the SAME questions that are goign through yours
"does he want to have sex?
is he into me?
know what im saying
come on man!! grow a brain and a pair of nuts.....if you want to have sex with this girl what did you expect she was just gonna say
hey! wanna do it?
you were suppose to sleep on the coach but she invited you into the room...now there has got to be some sort of comfort level there......all you had to do was play your cards right and you would of been having a GOOD time if you know what i mean......so next time make a move
and i dont mean move like immediatly make out with her that could get you slapped if you got the wrong impression but i am saying read the situatoin and move accordingly......perhaps you should of put in a movie and watched it, or played a game, or something to give you time to make that move that you want to make.........cause the minture you walked into that bedroom you dont have alot of options as of what to do........
so next time either kiss her if your feeling lucky, say im gonna watch a movie how bout you join. just whatever you can think of
its up to you really, but whatever went wrong it was on account of you and im sure you know that...
it was either you hadnt brought up enough comfort in her for her to want to sleep with you...or you have trouble reading body language cause hell her body could of been saying ocme get me, or she was waiting for you to grow a pair and make a move but you didnt..
like i said before millions of scenarios are possible.....
personnaly, what i would of done is teased them a bit and went for the kiss and worked from there, or teased a bit and/or palm read (and side note i dont konw how to palm read, but come on do they really know that i dont

.)...and then look into there eyes for a bit and just go for it...
but thats just me hey! if i got the wrong idea o well ill move on, its not like ill go to jail for me trign to kiss her...plenty of girls our there