You go get it

Keeping to the shadows you run back to your cottage, quickly opening the door and retrieving the metal folding stool, then running back to the Mellon Building.

You see no one, and you wonder if you're being foolish, but since the light is still on where you saw the headmistress you continue with your plan. Noticing the window is still partly open you move quietly placing the foot stool beneath it and making sure it's steady before climbing up to carefully peer into the room.

You've come at the perfect time. Ms. Naylor has let her hair down and is peeling her plain white panties down her legs, giving you a prime view of her fine ass. You quickly start recording the scene on your phone as you watch her stand before a full length mirror and examine her naked body.

And a prime body it is you realise. Her full breasts are firm and round, her waist slender, her hips flaring out into a lovely peach of an ass. Her legs look sleek and strong, and you imagine them wrapped around you as you pound your cock into her. In the mirror you can see that she has trimmed her pubic hair short, and the sweet lips of her labia look thoroughly edible.

She examines herself with a critical eye, cupping her breasts and rubbing her thumbs briefly over the nipples before running her hands down to her waist and staring at herself. She frowns slightly at some flaw that you do not see, then gives a sigh that makes her tits jiggle deliciously. Stepping gracefully to a dresser she bends over and opens the bottom drawer, giving you a heartwarming view of her ass and the sweet gap between her legs that promises untold delights.

She stands up and goes back to the mirror. To your surprise she pulls a black lace and satin teddy over her head, tossing her hair as she smooths it down over her body. She buttons the crotch snaps, then poses in front of the mirror, suddenly looking nothing like the staid and conservative headmistress you had met. Her face is now coy and teasing as she strikes pose after pose, obviously enjoying what she believes is a show for herself alone.

Your cock hardens as you watch her performance, once again fantasising of taking her, using her prime body for your pleasure. It would be a simple matter to push the window up higher and leap into the room. You would be on her before she could do much more than squeak, and with her bed right there you could take your pleasure of her as you wished.