relevant information
on his/her character flaws and strengths that will play a role in the story. For example, if your protagonist grew up in a catholic foster home in Wisconsin and hates gay people, but it plays absolutely no role in the story, then just spare the reader all that junk. However, if he/she has to confront homosexuality in your story, then that information would be interesting and essential for your readers.
THE SETTING:
The Physical Setting:
What type of Physical Environment does your story take place in? Is it a small town in the Mid West, a fictitious Alien Planet in some distant Galaxy, a College, a Ghetto, a Law Firm, a Desert, a Jungle?
Note: Limit your description only to relevant details. Obviously, if your story is set in some fictitious environment that your readers are not familiar with, you need to give many more details than if your story is set in, say an ordinary town or city that they know. And you should limit yourself to relevant details. For example if your story plays in a skyscraper, you do not need to spend five whole pages describing how the elevators function when they play absolutely no role in your story.
The Social Setting:
What are the socially accepted or shunned types of behavior in the society where your story plays? Obviously, if your story plays in a social environment that is exotic, futuristic, medieval and so forth, where people do not behave "normally", then you need to "explain" it to your reader.
For example, if your story plays in a place and time where people monogamy is out and open sexual promiscuity is common place, then the reader would be curious to know how that functions, they know its not normal. However, if your story is set in the ordinary environment, do not waste time telling the reader something he knows already.
THE WHAT:
What is it that the Protagonist needs desperately? Your protagonist does not necessarily have to want IT at the start of the story. IT (the need/want) can develop during your story, but the reader should know this by the end of Act 1.
For instance, you could start off with a person who is lonely and in need of a lover to share their life with. Or someone who is broke and suddenly has to pay a lot of money for something or get into serious trouble, thus he suddenly has a "need" to get money quickly. Or you could start off with someone who is married and thinks they are happy, then they suddenly meet someone and develop feelings for them, thus developing a "need" to get out of their marriage and woo the new person. Or, you could have a person who is in a monogamous relationship, then they suddenly discover the world of swinging, (through a TV program, a magazine, conversation or an experience) and decide that they would like to try out that "new" type of life with their partner. Therefore, they now have a "need" to convince their partner to try out that lifestyle.
Note: Every person wants a thousand different things, but when you write, it is important that your protagonist have one goal/aim/want/need. If he/she wants a dozen things that are very different from one another, this is distracting. Choose one and stick to it. Remember, this is a "Story" not Real Life.
THE WHY:
Once you have established your protagonist's want/need, then you must show why it is so
difficult
to get? Remember, if something is easy to get, there is little tension and suspense. However, the greater the difficulty, the more insurmountable the obstacles seem, the higher the tension and the suspense. (You know this from Hollywood Movies, right?) I always make a list of possible difficulties for my protagonists.
Using the above examples,
a)
a person who is lonely and in "need" to find a lover to share their life with:
The difficulties could be that he is shy, or unattractive, cant approach potential partners, has no time or opportunity to meet someone new, lives in a small town and has a bad reputation so none of the potential partners will even talk to him/her, or is in love with someone who is not reciprocative of their affection, or someone way above him/her in their social status, or someone much older or younger, or someone of the same sex who has problems with homosexuality, or a close blood relation and so forth.
b)
a married person who suddenly develops a "need" to get out of their marriage and woo the new person:
The difficulties could be that their spouse does not want a divorce, or the new person is best friends with the spouse, or they work for the dad of their spouse, who will fire them if they get divorced, or they live in a religious society where it is not in to get divorced and so forth.
c)
A person who suddenly discovers the world of swinging and group sex and decides to try out that lifestyle with their partner:
The difficulties could be that their partner is religious and prissy, and thinks swingers are decadent perverts, or there are no potential partners in the vicinity, or they live in a society where swingers are shunned and ostracised.
d)
A person who is broke and suddenly has to come up with some money quickly:
The difficulty could be that he has no job, or bad credit, or nobody he can borrow the money from and so forth.
NOTE: If your readers sympathize with your protagonist and their goal, the readers will wish him/her success, if not, they will wish him/her failure. Either way, you will have their emotional involvement.
However, if they are not emotionally involved, or if they do not understand who and what the hell your story is about, or think that the whole thing is just infantile trash, the majority (of your target readers) might lose interest.
The Middle (Act 2):
(roughly two quarters of your story in length)
Purpose:
To show the protagonist's struggle towards achieving his/her goal.
This is where you handle THE HOW. How does your protagonist try to achieve their aim? What action do they take to get that which is
difficult
to get? How do they fight and surmount the obstacles and opposition?
Your main character must make an effort to get what he needs. He must fight the forces that are against him. Obviously, you need forces that are against him, or he will simply get what he desires with no effort, and there will be no tension and no suspense. This is the reason why stories where all a man has to do is show a woman his big cock and she simply falls to her knees and starts blowing him and shouting, "fuck me with your huge cock!" are so boring and trite.
In real life, we often get things we don't deserve or do not even work for. However, in a story, this is boring and unmotivated. People generally have no problem receiving something for nothing, but they get jealous if that happens to someone else.
I mean, in my younger days, I had several "incidents" where "pussy simply fell on my lap" so to speak. When I recounted the adventures to my friends, most thought I was lying or they made stupid comments. However, when I was actively involved in persuing a woman, my friends' reactions were far more pleasing. They would get involved in my "hunt" so to speak. They would give tips, advice and their analysis of the situation.
I guess we all originated from "hunters and gatherers" therefore the public generally has much more sympathy with someone who is actively involved in a hunt, as opposed to someone who just gets his/her meat for free, undeservedly, so to speak.