Chapter 1
Harry was wearing a school uniform far too small for him, the skirt barely covers his ass and was pleaded so any movement you saw something.
A giant black dog now stalking the young omega, able to smell his slick from mile away.
Harry sat down now the castle grounds where empty, it was dark and a full moon so bright he could read. That’s when he saw the dog and how it was looking at him. He couldn’t help but slick up.
“Good boy…” Harry said now trying to get up but the grass was damp and he fell on his ass, the giant black dog now runs at full speed and pounces him.
“No!” Harry gasped ready to be bit but the dog shoved his cold nose between his legs smelling him deeply, Harry tried to get up again only to be pushed back down, the dog now licking his groin somehow getting his ass and cock in one lick.
“Oh fuck!” Harry moans thankful no one was watching. “Hey… you need to get off.” He said softly trying to wiggle out but all that accomplished was his panties being pulled down.
The dog took this opportunity to now lick his ass, licking up the omegas slick.
Harry moaning louder his body hot with need, desire, and shame, he involuntary opens his legs and dog now getting its tongue deep in his ass not slowing down, getting covered in slick. Harry cumming hard and moaning.
The dog now getting up and looking at the omega with a burning hunger in its eyes.
Harry took that moment to run but fell on all four and was gasping when the dog mounted him shoving its cock deep inside his ass fucking him unapologetically.
“Oh god!” Harry moaning now giving in he started to jerk off, the dogs cock the biggest he’s ever had inside of him, wanting it to last forever. “Fuck me!” Cum in me!” he cried out.
The dog’s knot now growing inside of the omegas ass, now cumming hard but not slowing down. Harry cumming again as soon as he felt the dog’s knot.
When it was over the dog slowly pulled out and transformed back into Sirius Black.
“Baby, you okay?” Sirius asked now concerned as his omega was still lying down.
“Mmmm… I so good, i’m just more sleepy than I thought I be.” Harry said almost purring.
Sirius grinning as the sight now, the young omega in a slutty school uniform, covered in slick and cum.
Sirius picked up Harry, taking him to the bedroom they were saying at Hogwarts. They were both back there to celebrate the beginning of quidditch season, and Harry wanted to do some role playing, where Sirius was a dog and took him by force. Something the older alpha was at first skeptical but after more reading and researching about consensual non consent, he was willing to try.
“When we get back upstairs want to go again but you know as you?” Harry asked softly.
“Yes baby, I would love to.” Sirius said grinning.