All characters are of legal age. This story contains rough anal sex, female dominance, abuse, and scat. If these do not appeal to you, turn back now.
***
She laughed at my prostrate form. "There's a good Ace. Show me your ass."
I frowned, her skeptical and uncertain demeanor disappearing distressingly quickly. I felt a cold finger stroke my crack, lube dripping between my cheeks and onto my balls, causing them to shrink.
She pressed a finger inside me, gently at first, and then more insistently. I fought my body's instinct and loosened my sphincter, letting it in. She thrust it slowly, then slowly faster, warming up my ass for something larger. She pulled her finger out, and I sighed lightly.
She already wore the harness and I heard her digging in the toy bag for the dildo. I heard it come out and knew she held it reverently, wishing it plugged into her nervous system. She lubed it up, rubbing the residue between my cheeks. Seconds later, instead of fingers, I felt something larger.
I struggled to loosen my sphincter, and it cooperated for a few seconds before rebelling, but by then it was too late; the head was inside me, and oh, it stretched me. She pushed deeper and deeper, and much too late I realized she has switched dildos on me. It was larger than I could handle, and I tried to pull away.
She smacked my ass. "Sit still while I fuck you."
I moaned at the sting of her fingertips on my cheek, and she grabbed my hips more securely and resumed her thrusting.
"Please please..."