The sub stared, his face seemingly devoid of emotion, as the second shadow started to pump in and out of her backside quickly, swelling another half an inch as it picks up speed.

katy grits her teeth trying not to moan as the student continues to read

The demon smiles, and suddenly both shadows leave her body. "Good. now summarize."

katy sighs happily

the girl finishes summerizing and sits down

He smiles widely. "Good. Class dismissed!" As he speaks both shadows thrust roughly back into each of her already tender holes, thrusting in and out very quickly, and none to gently.

katy gasps loudly as the students leave, a few boys have hard ons now as they leave

The teacher looks down at Katy with a frown. "Now. Why were you disturbing my classroom?" As he spoke, he walked to the door, shutting and locking it, than pulling the shade over the little window.

"sorry sir.. i do not know what to say, for some reason i have been experiencing some... troubles bellow the waist" katy groans trying to stifle a moan

The teacher raises an eyebrow. "Oh? Show me."

"no i think i can deal with it sir" katy says moaning slightly

He grins down at her. "I didn't ask. " He walks to the window, closing the blinds. "Now show me!"

katy looks at the teacher "it's you that is doing this to me isn't it?" katy asks before she moans

He frowns, deeply. "Hmmm. Shame on you, ruining my little experiment. " He unclasps his coat slowly. "I had thought you'd be more responsive during the class."

"oh bugger you, i am not about to make a show for you" katy growls

"So I had gathered. A shame though. It would have been fun to watch the other students. I suppose I'll have to get... other entertainments from you. " His coat finally opened, showing inhumanly pale, smooth skin, the only marking a small scar in the very center of his chest. As he shrugged it the rest of the way off, his pitch black wings stretched for a moment to their full eight foot span, before closing in behind him, above Black pants, and clawed feet, thinly covered by shadows now.