As a porn performer you most likely will be cast into a wide variety of roles in a wide variety of niches your look may fall into. Whether it be a horny school girl, a dominant MILF, a sexy nurse, etc - please think carefully and consider whether the role, part and dialog the writer, director or studio requests that you act out is something that you can live with later.
Just as you should carefully consider whether or not doing porn itself is something that's right for you both now, and later on in life (remember - it's not something that you can EVER take back), you should put the same thought and consideration into each and every part you play (in each and every movie and/or scene that you're cast in).
Depending on your current life and financial situation, it can be easy to jump at ANY part you are offered (and often those around you, both personally and professionally may strongly encourage you to do so), however this is YOUR LIFE and YOUR CAREER - not anyone else's.
Deciding whether a part is right for you can be difficult - especially when it comes to the time frame in which you're often forced to decide (as a new performer, most of the time you won't even find out what a scene is about until you arrive on set if the scene or movie is booked by an agency - often times you won't even see a script until you arrive on set). My suggestion is to simply go with your gut and your instincts. Don't be afraid to speak up if the dialog isn't something that you feel goes against how you feel about certain things.
For example - if you have a problem with (as most people do) the subject matter of incest, and you have a look which falls into the "teen" niche of porn, make it known to your agent. If you arrive on set and are cast opposite of an older man and are directed to play the role of his daughter who later in the scene you're directed to perform sexually with - you have the right to say "hey, I'm not comfortable with this". Yes the scene may be canceled, but it may also simply be altered. Regardless why play a role that isn't something that you can live with later on?
Here's another example - lets say that you fall into the MILF category and you are cast in an interracial scene of which the person you are cast opposite of for the sex scene is a young black man. Lets say that setup of the scene is that you're a lonely housewife who decides to get it on with your mechanic, BUT the catch is that the studio director wants you to call the black male performer a "N*gger" in the dialog. If racial name calling is something that you have a problem with in your real life, then you may not want to do it on camera.
As a final example - lets say that you are cast as the lead in an adult movie of which you are asked to play a political figure, or any real life person in a "parody". Yes, such a role can definitely assist in sky-rocketing your adult industry career, however remember that such a role can be damaging to whoever you're impersonating's career. In this situation I suppose I have to say that if you wouldn't want someone to impersonate you, you might not want to impersonate them.
I as an adult industry haven't always thought things through when it's come to accepting roles in porn movies. Rather than going into detail, I'll simply link to a couple of my recent "Monica Foster" blogs.
http://monicafoster.blogspot.com/2009/09/another-blog-100-from-woman-who-created.html
http://monicafoster.blogspot.com/2009/08/problem-with-porn-parodies.html
In conclusion, just as top professional mainstream actors and actresses carefully consider roles before taking them, you, even as a beginner in the porn world, should do so as well.
