“Yes please…”

“Yes please, what?”

Day’s eyes rolled into the back of her head a little as she said the words. “Yes please… Professor.”

Study let out a little moan of her own. Everypony knew she loved it when people called her by her title… especially in situations like this.

“Then… relax your wings.”

Day paused, her eyes blinking in shock. She… she couldn’t bring down her wings. It… it was impossible…

“Think about Lily…” Study encouraged her, stroking her hips and sides. “Think about her looking up at you as she suckles you dry.”

Day stared into nothing as the thoughts pulsed through her brain. Some tiny piece of her rebelled, saying she was giving too much control to this wonderful, delightful professor who had offered not only to tutor her, but to sate her… three days out of every week!

“I…”

“Think about how much you love being a good filly…” Study continued.

Day blinked a few more times. Her knees were weak. She could barely stand. She wanted to cum so badly right now… but knew she couldn’t. Once the professor had stroked her wings, she knew what it meant.

“I… don’t know, Professor… if I…” Day murmured.

“Good fillies are submissive,” Study breathed into her ear and straight into her brain. “Good fillies do what they’re told. Are you a good filly, Day?”

“I’m… I’m a good filly, Professor…” Day echoed. She felt as if she were floating away from her body, completely out of control of it… only attached to it by the pleasure of Study’s hands and naked body against her back. Her wings began to shiver and settle.

“And good fillies do what?” Study prompted.

“Submit, Professor…” Day whispered.

Her wings dropped to the halfway point.

“Yes… just… let go…” Study Break’s voice sounded strange, like her own thoughts, echoing through her own mind. As if Study simply was saying what Day was thinking.

“Fold your wings.”

Day submitted and her wings fell.

“When I touch your nipples, your wings will react normally,” Study said in Day’s own voice in her head. How’d she do that? She… she was actually in Day’s head!

Day couldn’t even nod. She simply accepted the truth.

Study shifted again and Day felt her wings slip in under the professor’s arms. Study Break now stood completely flush against Day’s aching body. Day was pinned between the desk and the wonderful professor.

Slowly, tenderly, Study brushed her hands against Day’s large breasts, inching ever closer to her nipples. Day found herself coming back to her senses and trembled in anticipation. One of the professor’s hands slipped lower and Day shifted, eager to give this wonderful mare full access to her body.

“Such a good filly,” Study cooed in her ear—the words echoed in her head, too. “Now… Day, you should know you’re ready for The Filling part of… mmm… your Long Heat…”

Day nodded quietly, lost in a haze of bliss.

“Pay attention now…” Study said and Day found herself unable to resist the command. Every word coming from the professor’s lips become critical. It was because all of her words were Day’s own thoughts. “Once your breasts fill, it’ll start happening naturally. For at least one orgasm per day. Considering it’s you… probably more.”

Day nodded. A tiny island of clarity appeared in her mind as she accepted this.

“After that happens… you’ll start craving not only fillies, but colts, too.”

Day thought about her constant need for the tender touch of a filly’s hand. Then she thought about what it would be like to have a real stallion inside of her again. She hadn’t been mounted by a real stallion since her senior year. Day shivered in memory, remembering how full she had felt that night. Bradley had been so big… no… it was Tandem who had filled her with his stallionhood.

She had been his little slut mare and she had loved every second of it.

Then, a little whisper out of somewhere said something about stopping. It was a silly whisper. It insisted that she wasn’t a sex-crazed western pegasus filly, but instead some boring weird-looking boy… who wasn’t a pony at all?

She shooed the thought away as she felt Study’s fingers less than an inch away from her right nipple and her bucking soaking sex.

“Now… you still won’t be able to conceive until after you’ve had the contraception spell removed,” Study continued. It amazed Day how in control her professor could be. Not to mention just how much it turned Day on for the professor to be in so control when Day wasn’t.“So, don’t worry about that…”

She thought about it. She thought about somepony like Gray Rider mounting her as Lily Valley suckled on her enormous, milk filled tits. Her hips bucked and she let out a heated moan of unbridled need.

She thought about presenting herself the Timberwolves, her tail lifted and her mouth hanging open, with nothing but stallions around her, waiting for their turn to take Day Dream.

“I won’t go any further until you tell me to do so,” Study said, her voice serious.

A chill filled Day even as her mind wandered through the idea of sucking that hunk of a stallion Mister Goldenrod off under his deck in the middle of class.

Some part of her lifted away from the haze of heat and lust and found nothing but chilly air, like when she had climbed the mountains with her roommates and flown into the star-studded night. She thought about landing and watching the couple make love beneath the moonlight, right in front of Day. Black Bark had seemed ready to stop pounding his marefriend, but Well Wisher had demanded he fuck her right there in front of Day, all while Day fingered herself to orgasm.

She had licked them both off that night. Nothing else had happened since… but she loved listening to Well begging for Bark to ‘breed her.’

She knew what she wanted. Even as the silly little whisper told her that none of that had actually happened, Day opened her panting mouth.

“Make…” Day gasped. “Make me full, Professor… please!”

“That’s my good filly,” Study murmured.

Study’s hand brushed Day’s right nipple and squeezed gently as three of Study’s other fingers slipped into her.

Author's Note

I so wish I was Day right now...