Sorry, it's my fault. I had assumed that since the story was posted on an adult forum where people gather for the main purpose of jacking off to tickle torture that that was the main point of this story.
Silly me and my impossible leaps of logic.
I'm not trying to troll anyone, but good lord. I see a perfectly good story being ruined by a group of whiners because "oh god, we don't know what happened but the hints make me rage!"
I'll solve this right now: If it keeps your cocks stiff to think the chick got raped, guess what? She got raped. If it keeps your cocks stiff to think something less intrusive happened, guess what? She didn't get raped.
Problem solved, I'm going back to lurking. Have fun writing the doubtlessly amazing smartass comments you'll come up with.