We started by inserting various objects into her anus, stretching and enjoying it, but the stimulation became too intense—her anus erupted like a volcanic vent, going completely wild. So this time, we restrained her in a standing position. Her wrists were tied and suspended from the ceiling, while her ankles were spread open and fixed with a spreader bar. Black vinyl sheeting was laid across the floor—what could it be for? With her ankles immobilized, she struggles to keep her balance, swaying unsteadily. As she wobbles, I pull out various tools from my bag. "Nooo, stop, it hurts!" *Snap!* Without hesitation, I strike her buttocks with a flat whip. *Snap!* *Snap!* "Aaaah! Nooo! Aaaaaaah!" *Whack!* *Whack!* *Whack!* *Whack!* "Ah! Aaah! Aaah! Aaaaaaahhh!" I begin with light, rapid slaps, gradually increasing the intensity. I slap back and forth across her ass, then her lower abdomen, and from underneath, smack her groin repeatedly. I take oil in my hands and spray it across her back, making her back and buttocks slick and shiny. Of course, I coat her pussy thoroughly too. It feels even better to slap her while she's all slippery. *Snap!* "Nngh..." *Whack!* *Whack!* *Whack!* "Aaaaaah..." *Whack!* *Whack!* *Whack!* "Nnnnn... nnnn..." After a round of slapping, I gently caress her buttocks... then resume: *Whack!* *Whack!* *Whack!* "Aaah! Aaaaaaah!" The force steadily increases until her buttock flesh jiggles and sways. I deliver alternating slaps, then bring the whip down hard from above. "Uuuuugh... aaaaaah..." Her expression begins to glaze over in ecstasy. *Snap!* *Snap!* *Snap!* "Aaaauugh... aaaaaah... aaaaauuugh..." After slapping her for a while, I bring out the vibrator to introduce a new kind of stimulation. She watches herself in the mirror, eyes filled with anxious anticipation, wondering what will happen next.