Hmm i have to agree with mostly everyone, but Tripp on this one...theres no getting out of LJBF's with a guy.
Girls judge us on our value, and since that can change we can pull ourselves out, not easily but its possible.
Guys judge women mainly on looks, below a certain standard, and a guy simply will not want to be more then friends...and since your looks really cant change, you really wont be able to pull yourself out.
Now granted i do agree with Tripp and the others that looks arent everything, dont get me wrong...but for guys the final judgement comes down to physical looks. Ive been around very attractive women, heard them speak and decided they where just friends (or bad news)....but i have never met a ugly girl and after talkig to her thought to myself...her personality is great, forget what she looks like.
Girls who are of average looks can get leveraged by personality, sure...But they are typically girls who are above our base line standards anyway...even if slightly.
Also, most guys dont do LJBF's knowingly...unlike girls who are constantly gauging that possible choice, guys either are attracted to a girl or not, most of the time. I know within the first few seconds of meeting if i would be intimatly involved with a women or not, very little she says or does from that point really matters.
For each guy their baseline standard is gonna be different, mainly because guys judge physical looks differently. Also how far below that baseline they go will depend on a few things, how long its 'been', if they are intoxicated, if they figure it wont take any effort, if they dont think friends will find out.....and in incredibly unlikely circumstances, what the girl does/says. Notice all of the reasons i gave above had to do with the guy, and nothing with the girl.