Plain Vanilla

Fluttershy woke up in a strange room. Strangely enough, she was tied up. She groaned softly, "H-hello?"

A crop to the flank greeted her. "Shut up," a female voice commanded.

A gray alicorn mare with a straight, brown mane and tail, brown eyes, and a cutie mark of a sewn-up heart stepped into the yellow pegasus' line of sight. The alicorn sported a black corset, a black hat, and a spiked collar.

Fluttershy wanted to protest, but a pink ball gag was placed into her mouth. This mare was scaring her!

"We're going to have a Tartarus of a time," the gray mare grinned, "I promise. You will refer to Me as Madame or Mistress. Is that understood?"

"Ymth, Mmthtrmmth," Fluttershy mumbled.

"Good girl," Mistress purred, undoing Fluttershy's restraints and levitating a lubricated butt plug with her cutie mark on the flat end, "Turn around and open up."

The yellow mare did so at once, her cock bobbing between her hind legs. Her teal eyes bulged as the plug made its way into her plot hole. "MMMMMPH!"

Mistress smiled, admiring Her slave. "Such an impressive member," She mused, Her marehood getting wet.

Fluttershy blushed hard at the compliment. She quickly hardened and whimpered, "Thmmk ymm, Mmthtrmmth."

The gray mare swiftly smacked the slave's flank, eliciting a yelp. "Firm, yet it wobbles like gelatin when disturbed. I can respect that."

The yellow pegasus whined softly before the gag was removed.

"You're going to show Me your skill at eating pussy. On your back. Now."

Fluttershy lay down, flat on her back. She opened her mouth eagerly.

"There's a good Flutterslut," Mistress cooed, hovering over the yellow mare.