When he peered over the curtain rod, I decided to give him a show.  Fingers snapped across nipples.  Hands kneaded breasts.  At one point, I even remember biting my lip and gazing up at him coyly, dropping my head to the side and dragging my fingers down the side of my bared neck as the water moistened my freckles and flushed my chest.

It didn’t last long.  He had to get into the shower – I instructed him to for the good of the order, citing (unnecessary) community service.  That was where my control ended.

I leaned up against the wall of the stall, pushing my ass against him and allowing him to massage my shoulders and drag his hands down my back.  I rose on my toes to rub my ass against his cock, hard from the moment he crossed the curtain.  The only thing the height difference didn’t prevent was nestling his shaft between the cheeks of my ass, and I milked that for all it was worth.  One of his hands closed around my neck, and I tugged the other between my legs, where he eagerly strummed my clit.  Applying pressure to my throat, he pulled me upright until my back was pressed against him.  His teeth nibbled my earlobe as I struggled to breathe despite the hand on my airway and water cascading into my mouth.  We writhed together, and every time I closed my eyes, I was imagining how we must look to an outsider.

He bit into the side of my neck several times, leaving pink indentations and mottled purple and grey bruises that I admire periodically as I type this.  As I pressed my forehead against the wall of the shower, his hand came down on my ass… once… twice… three times.

“Do you like it when I spank you, slut?”

“God, yes!  I love it when you spank me, Master.  Please give me more!”

Shoving my ass against him once more, I ground into his hardness while teeth tore at my neck, one of his hands working his cock furiously.

“Please, Master… I want you to cum on me.”

“What would you do for it?”

“Anything!”

“Be more SPECIFIC, slut!”

“I’d suck all the cocks you wanted.  I’d fuck all the women you asked!”

“Would you suck Mr. O’s cock?”

“I would suck Mr. O’s cock.  I’d suck it dry.  I’d fuck him to please you, Master.”

“And would you swallow his cum, slut?”

“Every drop, sir… and I want your cum.  Please give me your cum.  I want it all over my ass!  Please give it to me!”

And so he did.

A/N: Mr. and Ms. O occupy a very special place in my internet life, as well as a less substantial place in the slutling’s, so it was only natural that they start showing up in our mutual fantasies eventually, I suppose… although the addition of Mr. O was a very unexpected surprise!