Mcgonnagal was on her inserting her finger into her soppy wet vagina and fucking a dildo up the as (which actually happened to be a quill transfigured).

She was moaning in pleasure and thinking about her student Harry Potter she immagend him pounding her pee hole with his jizz stick and sucking the milk out of her tits

Harry Potter in fact was outside the transfiguration class room about to enter to ask his proffesir about his transfiguration homework that she had assigned

He opened the door to a sight that shocked him and if he was honest aroused him it was his elderly teacher masturbating and fucking a dildo and the weirder thing was she still had yet to notice his arrival

Harry reacting on instincts pulled out his want and cast a locking charm on the door a silencing charm on the room and other, charms so that no one would come in

He walked up to his transfiguration teacher and notice the cum leaking on her fingers and the pleasure that was on her face

Deciding to go for it Harry did what felt natural and he went down on his knees and slowly brought his mouth to his teachers aged yet beautifully soaked count and sucked on it

Minevera Mcgonagall opened her eyes at that moment and looked down only to see the person she had been fantasing about sucking on her cunt

"Harry" *moans* "what are you doing"

"I'm suck on your pussy professor and from your moan it looks like you enjoy it as much as I enjoy the delicious taste of your pussy"

Mcgonagall couldn't hold back for any longer and erupted all over harry face covering it in her juice

Harry stood up and went behind his professor and pulled out her dildo that was still in her as and replaced it with his dick(which he had magically lubricated with his professor's cum)

*moans* from both of the lovers could only be heard as harry entered her from behind

Harry started to move back and forward at a fast past slapping his balls into her cunt

"Yes faster do me faster" Mcgonagall almost screamed

"Is that what u want u whore for me to fill me to go faster for me to fuck u in your ass so much that u fill with cum"

"Yes I'm nothing but a whore your slut that you can fuck at any moment"

Harry groaned and relised into his teacher letting of streams upon streams of cum so much cum that Mcgonagall belly started to inflat abit she almost looked pregnet

Harry transfigured a bottle of ink into a vibrating butt plug that he controlled

"Listen carefully you will wear that butt plug in till I tell u not to"

"What if I have to take a shit"

"Don't worry about that my little cumsleave this plug makes sure that you won't need to take a poo"

"From now on I'm your master and you will be a cum dump to who ever I let fuck you they may abuse you however they like but your as is mine".

"are we clear"

"Yes master I'm nothing more than your whore and slave to who ever you wish"

And with that harry left Mcgonagall alone in the classroom with no clothes on and not enough strengh to stand on her own two feet