It can be terrifying in the moment. Yet, I'll shamelessly masturbate about it later thinking about how much further things could have gone. As terrible as rape is I do think it's just naturally ingrained in our minds.
I sometimes use the "what if..." element in my consensual stories, which I usually post on LushStories (they don't allow rape, but their minimum age for characters is set at 16, which allows for genuinely teen stories). The girl gets scared by some ugly bugger here or there, and she starts to think "what if..." when she's with her lover.
In a scene I just worked on, a glamorous actress who's on a motel road trip with a teenage lad is taking a walk with him in a small forest near a white church, on a ridge overlooking St. Lawrence River, and they see a cargo ship making its slow headway out in the distance, headed for Quebec City and the Atlantic beyond.
The white-gloved, headscarfed lady asks her young lover what these dirty sailors would do to her if she was all alone on that squalid ship. This definitely turns her on!
The moderators on that site won't allow the r-word, but they do allow that sort of borderline play when used as an erotic element. Avoiding the r-word and using euphemisms fits perfectly with characters who lived in 1953. I often use the expression "to rough up a girl", which I've heard in film noirs.
This being said, for you, the scene would work better if they met a scary-looking man in that forest, e.g. a sexton at the churchyard, a huge man against whom the lad would have no chance. They run! Once back in their Chevy, she drives away with her heart racing, in sweat, and she stops a bit farther at some place quiet, where she has very intense sex with the lad.
Even better for you... The big sexton overtakes them, beat the shit out of the lad, and then has his way with the actress, who ends up half-naked and whimpering under the grunting man, her head bobbing on the forest floor.