"spread them" said K. softly while caressing f.'s crotch with the tip of the crop
f. spread their legs a bit.
"wider, as wide as you can"
They hesitantly obeyed.
K. continued caressing them, sometimes taking away the instrument to make f. think they would get hit, but K. didn't do it.
When the first hit finally came, f. flinched and closed their legs.
"try to keep your position please" K. said patiently and f. spread their legs again.
The play would go on. K. caressed f. and struck them after a few moments of calm.
f. flinched every time but was mostly able to hold the position and didn't close their legs again.
"Very good" K. said from time to time.
So it went for several minutes until f. heard how K. laid down the crop. A few moments went by before a new pain ran through them when K. inserted xs penis into them. X took only a few seconds to get comfortable before starting to penetrate f.'s sore vagina heavily. pain and pleasure mixed in f.'s body and mind.