This is a job for the Dean

The topless teens stare at you with glistening eyes. You don't feel your 48 years right now. Grabbing the pair of red-heads and throwing their lithe young bodies onto your bed had come with a rush of power that had caused your cock to swell. Pinning Sally's slender frame against the door with yours had only added to the feeling of dominance, but best of all had been watching the sisters meekly pull off their shirts at your command.

As a biology teacher you were well aware of the behavior of primates where only a single dominant silverback male would mate with all the females in his troop. A successful alpha male would inseminate as many fertile young females as possible to pass on his DNA - you stop that line of thought before it gets out of hand. As much as you'd like to take matters in your own hands, Ms. Naylor's warning about not stepping out of line is still echoing in your mind.

"Get your clothes on." Your voice is hoarse as you fight back the primal urge to assert your mastery of these two in the most primitive of ways.

"What?" Sally clearly was thinking along the same lines as you, and the last thing the shy redhead was expecting was to have you tell her to put her shirt back on.

"Yes Mr. Carter. We're so sorry, Sir." Grace was happy to have this nightmare end, and she pulled the paint-streaked shirt over her small breasts gratefully. "Don't worry, Mr. Mason. Sally and I will fix this right away, we promise."

"You misunderstand me, Miss Mathewson." You tell the babbling young student. "I'm taking you to see the Dean - this is his problem now, not mine." You take the time to snap a couple pictures of the graffiti with your phone, and then pull out the map that Ms. Naylor had given you. "It says the Dean's office is in the Mellon building, I assume that you two know where that is?"

"Let Sally go!" Grace suddenly changed her tactics. "This was all my idea anyways, not hers."

"That may be true, young lady, but your sister was standing right next to you writing 'man' when I came through that door." You point to the door and Sally slowly starts moving, but Grace grabs your arm pressing her firm tits against it as she clings to you. "Please. Let her go and I'll give you a hand job. I give good ones!" You see Sally's eyes widen in surprise and suspect that this was a skill she did not know her sister had.