Try again. The desire thing is just a mechanic of the sexual combat. Rape is sex without consent. And knocking down a woman during a brawl, tearing her clothes off, and inserting your dick in her isn't consent. End of story. If you don't believe me, read the battle log when they touch her, she's clearly protesting. One of her quotes when she is being fingered, verbatim, is "EEK...! WHERE DO YOU THINK YOU ARE TOUCHING?!!" Does that sound like consent to you? No, it sounds like rape because it is.
Last time I am going to talk about it.
1. Desire isn't just a mechanic. It is Karryn's Desires. It is what she wants but doesn't admit to it in the beginning. Your "protesting" is nothing more, then her trying to deny it to herself. Guy goes for kiss. Karryn says "Stop it". Guy kisses her anyway. She kisses him back. Doesn't look like, she wanted him to stop does it? Action speak more then words. Or can you name me one moment, in which she is actually resisting to anything? No? Weird isn't it. Guy fingers her and she just let's it happen. Not trying to push him away or anything.
2. Quote from the game itself. "As her Butt Desire rises, she'll surely start letting me not only touch her butt but even finger her asshole." Sounds to me more, that she let's them do it. Like almost she wants to. Weird.
3. In every single case, that Karryn can respond to an Sexual Action, she does in a positiv manner. Never ever does she deny a request. Guy puts dick in her Hand? She gives Handjob. Guy lays on the floor and asks for a Footjob? Karryn gives a Footjob. And so on. Another perfect example of, that she actually wants it because she desires it.
4. Now to your "extrem" case, when she gets pushed on the floor and getting fucked. How about we mention, that she is horny? That she has hard nipples? That she is wet? That she starts moaning right away, when she gets fucked? That she is not restrained in any way but doesn't resist at all while getting fucked? Yeah... sure looks like rape. If you really thing rape looks like that, think again. A lot more screaming and struggling and forceful restraining going on.
5. Another Quote from the game "Only when her Cock Desire is high enough will she accept our dicks inside her." Sure sounds like rape.
In short, there is no rape in the game at all, because the Prisoners are more a tool for Karryn, to satisfy her Desires, that obviously she would never admit to have in the beginning. That is why she is "protesting" in some cases but never resists at all, even though she is clearly capable if she wanted to.