Friends with benefits? Does it work?

Before you even get the thought into your head.....NO I do not intend on watching this film.lol But seeing the trailer for it made me contemplate the whole "friends with benefits" thing. I started to think about the positives, negatives and possible outcomes of a FWB agreement.

For one I've yet to meet a woman who will admit to wanting to be a part of or ever being involved in a FWB relationship. I've actually had women tell me that I had better not be expecting one because it wasn't gonna happen. I know they exist though(shhhh.lol) so that tells me its an unspoken thing. I don't know if women that are involved in them are in denial or they just wanna keep it quiet. I'm guessing its the latter....because I know women don't want the word going around and every dude they meet from that point on only wanting sex.(Its bad enough as it is for women with that)

Whats the best way to keep it strictly physical and keep emotions out of it? Is that even possible? Women connect emotions to sex and men are very territorial so it would be pretty difficult to keep it on  "friends" only terms. I personally think the only way it can work is if both people lack the time and energy for a real full time relationship. Just because you're busy doesn't mean that portion of your life has to be missing. For example if a woman is working and going to school and a man works crazy hours....then it can definitely work.

So if both participants know what it is and its the best thing for both of them....then its definitely doable. But I'm tired of typing....