Fantasy Room.

"Let's get you ready, Luna," Harry said with a smirk as he watched the two girls interact. He could see the excitement in Luna's eyes and the mischief in Hermione's. He knew that this was going to be a wild night and he was more than ready for it. "Let's go back inside and to the Fantasy Room."

The three of them walked back into the castle, their bare feet slapping against the cool marble floor as they made their way up the grand staircase. Harry led them to a hidden chamber that was filled with all sorts of toys and devices, designed to bring any fantasy to life. Luna's eyes widened as she took in the sight of the various collars, leashes, and plugs neatly arranged on the shelves.

"You're not the first to want to do puppy play." Harry grabbed a collar. "This is a very special designed collar just for that."

"How special?" Luna was almost bouncing on her bare feet as she realized she was going to live her biggest fantasy. Being a puppy to Harry and Hermione.

"It's enchanted." Harry said with a wink as he held the collar out to her. "It'll make sure you're the best-behaved little puppy we've ever seen."

Luna's heart raced as she took the collar from him, feeling the cool leather in her hands. She nodded eagerly, her eyes shining with excitement. Hermione couldn't resist a little chuckle at the sight of Luna's enthusiasm, but she also felt a thrill of anticipation. She had never tried anything quite like this before, but the idea of having a submissive little puppy to play with was definitely appealing.

"You'll only be able to bark with it on." Harry told her. "But if you want it off just point at it with two fingers. Okay?"

Luna nodded vigorously, her eyes sparkling with excitement. She couldn't wait to try it on. Harry took the collar and fastened it around Luna's neck, making sure it was snug but not too tight. Immediately, Luna felt a strange sensation wash over her, as if she were indeed transforming into a puppy. She let out a small, surprised yelp, which sounded surprisingly realistic. Hermione's eyes lit up with amusement and desire.

"Look at her," Harry said, stroking Luna's cheek gently. "Our little puppy is already learning her new barks."

"Bu first she needs a tail." Hermione grinned.

They watched as Luna's eyes glazed over with lust as she felt the cold, metal plug being lubed up. The anticipation was killing her. Harry took his sweet time pushing it in, giving her just enough to feel every inch of it, filling her up. She let out a yelp as it went all the way in, her body adjusting to the new sensation. When Harry was done, Luna looked down at her new tail wagging back and forth between her legs and let out an actual bark of excitement.

"Who's a good girl?" Hermione patted Lunas head.

"Woof!" Luna responded with a bark, wagging her tail harder, the plug sending shocks of pleasure through her body with each movement.

"Very good," Harry praised, his eyes filled with amusement and lust. He picked up a leash from the table. "Let's see how you do on this."

Luna's breath hitched as Harry attached the leash to her collar. She felt the tug and the weight of the lead in her hand, and her mind slipped further into the role of a puppy. The sensation of the plug inside her combined with the collar was intoxicating, making her more eager to please than ever before.

Hermione picked up a small bag of treats from the table and held one out to Luna. "Good girl," she said in a cooing voice, and Luna took it eagerly, her teeth grabbing the treat and her eyes never leaving Hermione's. She knew she had to be a good puppy for her owners.

"Alright, Luna," Harry said, taking the leash in his hand. "Let's see if you can walk on all fours like a good little puppy."

Luna nodded eagerly, her eyes wide with excitement. She had never felt so alive, so free of inhibition. She got down onto her hands and knees, her tail wagging with anticipation. Harry gave the leash a gentle tug and she followed, her movements clumsy at first but quickly becoming more natural. The plug in her ass made her feel filled and used, and she couldn't help but push back against it slightly with each step she took.

A) Puppy Training

B) Take their pupp for a walk around the castle

C) Hermione is a little curious about how being a puppy would feel.

D)Add.