A Mouse in Harr(iet) Potter 7 (Patreon)

AN: So I made a goof and didn't hit schedule before I left for work yesterday. Sorry about that.

For a moment, the clearing was silent as the three of us stared at each other. Naturally, I acted first, because being a magical super dog rendered me immune to such paltry things as being shocked stupid.

“Locomotor wibbly! Mimblewimble!”

Okay I lied, Harriet was quicker on the uptake than me. Two jets of light shot from her wand and hit our unintended voyeur, the first one orange and the second a pale blue, causing her legs to drop out from under her and the cry she started to make turned into a strangled gargle. In an instant, Harriet was up and dragging her fellow first year into the clearing by the back of her robes, a furious look on her face.

“Of all people that could have interrupted, it just had to be you, little miss bitch,” Harriet grumbled as Hermione’s arms flailed, trying and failing to push the younger girl off her.

“Muhr grlrbl!” Hermione… said?

“Shut up, I was getting ready to give my virginity to the one person worth giving it to. The one good thing I’d had in my life, and you just had to ruin the moment. And with you being the suck up that you are, you’ll run to the teachers as soon as you can, unless I figure out a way to keep you from doing so…”

While Harriet started pacing back and forth, trying to think of how to keep Hermione quiet, I couldn’t help but find my gaze focused on something that neither girl seemed to have noticed. When Harriet dragged Hermione onto the blanket she’d set up, her legs were open just enough for me to see the blue and white striped panties under her pleated skirt. Well, I was fucked either way, might as well enjoy myself before then.

So it was with great satisfaction (and horniness, mostly horniness) that I moved my head down and flipped Hermione’s skirt up with my nose. Then, while Hermione was staring at me in shock and Harriet took notice of what I was doing, I leaned in and drew my tongue along the front of her panties, giving the prepubescent bookworm a long lick.

“Hop ah!” Hermione cried out as her dainty hands pushed against my head to no avail.

“Good idea Pad, show her what she’s missing, make her crazy for you until she forgets all about ratting us out,” Harriet cooed, apparently very much liking the idea of me turning little miss reads-a-lot into a moaning puddle of goo.

Fortunately, all the practice I’d had with Harriet meant that even with the fabric in the way, my tongue soon had Hermione bringing a hand to her mouth as her moaning grew louder. Before two minutes were up, her back arched, muscles tensed even through the Jelly Legs spell that Harriet had cast, and a low, high pitched wail tore its way out of Hermione’s mouth.

“Petrificus totalus,” Harriet muttered, causing Hermione’s limbs to lock up. “Much as I love the idea of watching Pad mount you, I’m not letting you enjoy him before me, so just stay right there while we continue where we were before you interrupted.”

I don’t know what brought out this kinky side of Harriet, but I certainly approved. So I waited as Harriet got onto her hands and knees over Hermione’s face, positioning herself so that the other Firstie had little choice but to watch her dormmate get her cherry plucked by a two hundred plus pound dog.

“C’mon Pad, take me, please,” Harriet begged, pulling her skirt up before spreading her puffy and dripping slit.

How could I refuse that kind of invitation? So I hopped up behind her (she was so petite that my front paws could still reach the ground despite her being under me) and encountered the main disadvantage of being a dog. I can’t exactly aim. Still, Harriet reached under her and with dainty, delicate fingers took my red rocket in hand and guided me to her pussy. I wanted to be gentle, to take it slow. Harriet deserved that. Unfortunately, dogs aren’t wired for gentle and slow sex.

“Oh-oooh! Pa-aad!” Harriet mewled as I drove my cock into her eleven year old cunt.

Two months of waiting were so fucking worth it. She was wet, warm, responsive, and oh so tight. Her muscles squeezed down on my length, making it almost impossible to move. Almost. My hips moved in a blur, faster than any human could match, battering through her petite pussy until my tip met her cervix and my swelling knot touched her lips.

Following some unspoken instinct, I leaned down and channeled magic into my teeth before biting gently on Harriet’s shoulder, marking her as mine. The surge of magic flowing through her drove Harriet over the edge, her eyes going wide as she came, her mouth dropping open and her tongue falling out. Huh, that’s the first time I’ve ever actually seen an ahegao face.

Still, I was close myself, so I shifted my front legs a bit to brace her shoulders against them before adding to the force I was fucking her with, trying to drive my knot into her. Finally, with what I'd swear was an audible ‘POP’, my knot slipped into the gushing, preteen, first year pussy of the Girl Who Lived.

Harriet moaned in blissed out delight as my cum flooded her, my knot keeping us tied together, and reached up with her hand to rub at her skin just above her pussy, feeling at my knot through her skin.

“You’re cumming in me, it’s so warm, I love it, it feels right,” Harriet babbled, growing increasingly incoherent as she continued to give me a pseudo handjob through her skin. I, on the other hand, was a little bit distracted.

[quote]Do you wish to fertilize Harriet Potter?

[Y][N][/quote]

Did I? Eventually sure, but right now? In her first year? What would the children even look like? Giving it careful consideration, I made my choice.