Dumbledore had taken the mirror of Erised out to a nearby closet to make some space for his new sex swing and he could tell someone had been tampering with it. He decided to lay a scrying mirror nearby to watch who approached. As night feel over Hogwarts a figured loomed into the scrying mirror's view. Dumbledore was surprised to see Hagrid inside the closet. He decided to wait and see what happened.
"Hey there' little mirror." Hagrid caressed the sides of the mirror like an old friend. As he gazed into it a shape began to form. It was Buckbeack, dressed in the finest gown. It was their wedding. Hagrid saw himself dressed in a snazzy black suit. Dumbledore and Harry smiled up at him. Proffesor Sprout was giving the ceremony and when he announced them Man and Wife, Hagrid leaned in and gave the hippogruff a passionate kiss. Buckbeak's eyes widened. Everyone cheered as they walked down the isle.
Later Hagrid and Buckbeak were in a spacious hotel room. Hagrid laid sideways and shyly moved his finger back and forth along the carpet. "I've want'd this for so long Buckbeak. You an' me was meant fer each other."
Buckbeak was busy chewing on a piece of meat, not paying attention.
Hagrid rose. "Well les get to it then." He dropped his pants exposing his giant red penis popping out from a bush of thick coarse black hair. Buckbeak snapped his beak towards Hagrid's penis trying to eat it. "There, there Buckbeak, getting ahead of yerself, are we?" Buckbeak eyed Hagrid. His face turned upward diagonally. His bird like eye blinking. Hagrid positioned himself behind Buckbeak. "Dunnot worry Buckbeak, this won't hurt a bit." Hagrid licked his lips and entered the surprised bird who's eyes bugged out from his head. Hagrid began riding away. "Yeahhh that's it." Buckbeak tried to turn around and snap at him but Hagrid was holding him to tightly. "Tell me yah love me Buckbeak." The hippogruff cried out and Hagrid increased his pace. "Ima gonna cum Buckbeak!" The real life Hagrid who was watching all this had pulled down his pants and was stroking his meat, moaning in pleasure. He came at the same time as he saw his mirror image explode into Buckbeak. Buckbeak also came at the same time. Hagrid leaned against the mirror exhausted.
Dumbledore finished stroking his wrinkly cock and came. "Wow that was hot. I think I'll leave the mirror up and see who else show's up."