(sorry, was a bit distracted for a few days--hoping we can continue are little romp)
Harry sways his hips as he prowls forward, his knees spread wider than a normal crawl. He clutches his plug between his teeth and presents it to his Master.
A heavy, warm hand cups the back of his head. Harry purrs.
"None of that. We're playing puppy today, not kitten."
Harry nods and makes a grunting sound of assent, his plug an effective gag.
"I see you've fetched your tail," Severus says as he examines it critically, his hand still holding Harry's head in place.
"Leave it, puppy," he commands.
Harry drops the plug into Severus's waiting hand.
"Good boy," Severus says with a deep rumble in his voice.
He scratches Harry behind the ears and Harry is caught between delighting in the sensation and the accompanying shame of being treated like a pet.
"Turn around and present yourself," Severus says.
Harry obeys, turning and thrusting his arse in the air and wiggling it.
"Down, boy. The real excitement hasn't begun."
Harry sighs as Severus lubricates his anus and begins sliding the plug in. He makes shallow thrusts until it slides all the way in one long, slow push. There is a moment of pain when the widest point of the head pushes through, but euphoria sets in as Harry's muscles settle around the narrowed shaft.
Severus rubs his cheeks and slaps them a bit. Harry moans. He pants as Severus pulls on the protruding tail, wiggling it back and forth.
"Puppy likes it, doesn't he?"
"Yes," Harry pants out. "Gods, fuck, yes," he cries as Severus continues to manipulate the plug.
Harry sighs as Severus gives the plug one more push and lets go.
"Oh, don't think we're done, puppy. There's more to come," he whispers in Harry's ear.
Before Harry can ask what he means, he hears the silent hiss of the Engorgio Charm being cast as the plug begins to inflate inside of him.