Are you familiar with Shibari?
It’s an ancient Japanese artistic form of rope tying / bondage. You tie your bottom up, and you can create bondage scenes.
The psychological play really intensifies all of the sensations she’ll feel as you tie her.
Imagine: you tie her arms/hands over her head and behind her back, bend her over your bed, eat out her ass, eat out her pussy, maybe you tie her legs up and fuck her feet. Shit gets intense, and it makes women dripping wet.
A few recommendations should you experiment:
Always ask before starting: “May I have permission to tie you up”.
“Always negotiate bondage scenes prior to tying. Will you be having sexual intercourse, or leaving sex out of it? What does she want to experience? Etc.”
Slow and steady wins the race.
Have fun!