A couple more locations:
SNOWED IN CABIN: She went to her well-stocked cabin for privacy, it's totally off the grid, no phone, and didn't mind the snow, until a stranger wandered in, subdued and bound her, and for good measure, he disabled the 4x4 and snow mobile. Now, as she wakes up, gagged, stripped, and hanging by her bound wrists from the cabin's crossbeams, she watches in horror as the intruder BURNS her winter clothing in the fireplace. She will have to endure whatever rapes his twisted imagination concocts.
ON HORSEBACK/MOTORCYCLE: When I was younger, I imagined having a woman bound with her hands behind her back, gagged, facing me and straddling me while I rode a horse, my cock deep up inside of her, and the trot of the horse making her bounce up and down on it. I'd ride the horse around the coral, changing speeds and trotting styles to make the bouncing faster, slower, harder.
Later, after I got a motorcycle, I imagined that same position, but the motorcycle was parked and the front wheel was stabilized between two close trees or poles. I'd have my feet on the ground and would be thrusting, squeezing her ass and making her squirm, and the motorcycle suspension would be bouncing her around on my organ.