Using Percys "little" sister against him

Only one day later Grace and I were here looking down at "St. Marys Boarding School for Girls" a Roman Catholic relic in the Anglican ocean. Who ever thought that the Marshams were religious, even Catholic?

I shook my head in disbelieve tightening my grip around Graces waist. Grace who figured out that the little sister of good old Percy was attending this place.... well not for long anymore as she was preparing for her final exams. She turned 18 last summer and was finishing school in a couple of weeks, good girl she was a real teachers pet according to all we could dig up.....

I wondered again why Grace proposed a plan involving this girl in Percys downfall and then I saw her. In fact Grace spotted her first and point at her:

"There she is...." she said.

Well all I could exclaim was:

"Wow"

Of course Grace pushed her elbow into my stomach for this outright admiration:

"Old skirt chaser... " she muttered yet in an amused tone.

We both watched the girl closer:

In a classy conservative uniform the tall blonde still had charms that made her delectable to many man:

Long, very long legs, a nice rounded butt, but most promiently her voluptuous breast made her an erotic eye-catcher par execellence. In another outfit she sure would be even more of a blond bombshell...

I felt my prick growing and so did Grace as I was grinding my pelvis in her ass while standing behind her.

Grace just pushed her naughty butt even more onto it as she made a pointed remark:

"Well mister we will talk about this behaviour of yours later, for now we need all of our senses to turn her into our useful tool..."

Rubbing her ass at my bulge she added after a pause:

"Your little friend soon will play a major part in this..." she laughed

Pulling myself together I came back to my previous objection:

"But how do we get her to do what we want her to do? An eager beaver? A buxom nerd, is still a nerd!"

Grace looked over her shoulder at me and smiled again in this diabolic way she has developed within in the last weeks when she was up to something sly and kinky:

"My dear Balthazar, did you listen to me at all? Or were you too occupied watching me in my new black leather pants and boots?" She was right I had to admit.

"Well ok again for you Mr. Harper.... . One might think that boarding schoolgirls like this...." she pointed at the small crowd which was standing at the schoolyard

"are all not only well-educated but also well-mannered and..." she had to hold herself not to burst out in laughter "...kind of victorian. Yet this is a misperception! Use your imagination Balthazar! What does it mean to be one of them? Imprisoned in an old building, **** to allways wear this boring uniforms, no guys, only other girls around... . Believe me there is a lack, a huge void... and well there is this teenager lust growing and growing combined with loots of curiousity.... No my dear husband we could not wish for better conditions as a starting point for our undertaking"

Now fully turning to me she added with a additional smile:

"Besides my sources tell me that the little Audrey was rather chicken-breasted till a year ago....."

"You mean..." I stammered watching sweet Audrey closer again

"Yes plastic surgery, which tells us?" without waiting she continued "she is overcompensating on her prior inferiority complex!"

Triumphantly Grace stood in front of. Well I couldn´t argue with her about this chain of reasoning and thinking about the mere fact that sweet Audrey would have the urge to prove less inferior in other areas.... again I feelt my tool rising....