1. Your gender and age?
Male, 40+
2. Do you identify yourself most as Straight? Gay/Lesbian? Bisexual?
Straight
3. Do you fantasize being the rapist or the victim?
The rapist. Always.
4. Age when you first started having these kinds of fantasies?
16-17.
5. Do you still know what started it? (f.e. movie scene, book, story you heard etc. ...)
Read my cousin's copy of "The Claiming of Sleeping Beauty" by Anne Rice.
6. Have you been molested or sexually abused as a child?
No.
7. Have you ever raped someone or been raped in real life?
No. Not even close.
8. How often do you fantasize about rape?
Fairly often. 3-4 times a week.
9. Do you masturbate while you fantasize?
Absolutely. Isn't that the point?
10. Do you masturbate while you read rape stories or watch rape movies?
Yes.
11. Do rape fantasies help you to get a faster/better orgasm while you are masturbating?
Certainly a stronger orgasm.
12. Are your masturbation fantasies always about rape or do you also have vanilla fanasies?
Let's say there are some less violent fantasies, so I guess, yes.
13. Do you more often fantasize about stranger rape or rape with someone you know?
More often it's with someone I know (certain female co-workers, neighborhood girls, etc.)
14. Do your fantasies more often involve one on one scenes or gangrape?
One-on-one.
15.Do you always fantasize to be involved in the rape (as rapist or victim) or does it sometimes arouse you just to watch?
I am always the felon in my fantasies.
16. How important is the enjoyment of the rapist(s) for your fantasy (Absolutely important, very important, not so important)
Absolutely important. A man should enjoy his work. 
17. How important is the suffering of the victim for your fantasy (Absolutely important, very important, not so important)
Depends. I'm not into guro (dismemberment, etc.), but the humiliation and fear are absolutely necessary, and some light abuse (whipping, branding, slapping, etc.) don't hurt my hardon either.
18.What are the most common settings for your fantasies? (bedroom, outdoors, forest, a cabin, a dungeon, prison, military camp, etc.)
Dungeons, battlefields and military camps.
19 What's your favorite typ of rapist (blacks, gangster, convicts, soldier, biker, pirat, KKK men, etc. ..) or victim (virgin, schoolgirl, housewife, middle aged woman, MILTF, business woman, nun, femal POW .....)?
The rapist: Strong, iron-hard senior soldier or royalty (a prince leading a military expedition.) The victims: "Barely legal" virgins captured as war booty, often princesses.
20. Are your fantasy scenes typically more "soft" (the victim being forced against her will/ overpowered/unable to resist without overt violence) or more brutal (include the victim being hit/slapped/punched by the rapist)?
More often overpowering, though I don't mind slapping her around to enforce discipline.
21. What's the center of your fantasy, the sex or the humiliation and degredation?
Both, since my rapists "get off" on the humiliation.
22. Is it important that your fantasy scene has a convincing overpowering sequence including some struggling, slapping, screamimg etc
Yes.
23. Do your fantasy scenes typically include convincing resistance (kicking, biting etc.) by the victim?
A little, but it gives way to the girl bound and whimpering and absolutely helpless to prevent her deflowering.
24. Is it important that your fantasy victim is screaming, pleading, begging etc
Yes!
25. Is it important that your fantasy rapist(s) is/are degrading the victim with words ( calling her a slut, whore etc.) ?
Not so much, though the occasional "Bitch" to remind her of her place in life is all right.
26. Do your scenes typically include a man's cum and if yes, where does it usually end up?
The rapist always ejaculates, usually into the girl's vagina just to frighten her with the chance of pregnancy.
27. Do your scenes include anal rape? (Always, Often, Occasionally, Rarely, Never)
Often.
28. Do your scenes include oral rape? (Always, Often, Occasionally, Rarely, Never)
Often.
29. Do your scenes include vaginal rape? (Always, Often, Occasionally, Rarely, Never)
Always.
30. Do your scenes typically include the victim having an orgasm?
Never. She exists to please me, not the other way around.
31. How important is the size of the rapist(s) cock(s) cock in your fantasies?
Very important. Very large, the better to stretch a virginal vagina.
32. How long does a typically rape fantasy (masturbating) session usually last?
Maybe 20 minutes.
33. How do you feel after such a "session"
Relaxed.
34. Do you sometimes feel some kind of guilt for your fantasies?
No. Never.
35. Does someone in your real life know about your fantasy?
Yes, my wife.
36. Do you know of someone in your real life having such fantasies?
Yes, my wife.
37. Have you ever enacted a rape roleplay in real life?
Yes, with my wife in our youger (pre-children) days.
38. Do you imagine yourselve or your victim to be tied up?
Myself, never. The victim, always. Do chains and handcuffs count?
39. Are there any celebrities or pornstars playing arole in your fantasies (as rapists or victims)?
Not pornstars, but there are a few actresses and a certain Miss America of color whom I fantasize about raping.
40. Are there other key elements to your fantasies that I have missed with the questions above? If so, please describe them briefly.
The girl must realize that she will be my slave for the rest of her life, that she can expect to be raped at least daily for as long as she lives. And breed.