The next day passed in a fever of anticipation. During the afternoon I coached the girls on a quartet, but it was impossible to concentrate. There was extreme sexual tension in the air and both Kate and Jessica were making a lot of stupid mistakes. My own thoughts veered between aroused recollection of the previous night's fucking and nervousness about how much Nina and Lucy knew about this and what their reaction would be if they found out. Come the evening, I was at boiling point. I had been walking around all day with a more or less permanent erection and eventually resolved that if nothing happened by 10pm I would just have to take myself in hand.
Shortly before 10 I could just make out soft footsteps in the corridor outside my flat. They approached and stopped outside my door. The previous night I had heard nothing before the fateful knock. My visitors had come barefoot. Now, as a quiet tap at the door sent a surge of excitement to my loins, I knew something would be different.
All four girls stood before me, all identically clad in unbuttoned white shirts and little ankle boots of the softest leather. My cock pulsed in appreciation as, without a word, they entered my apartment, Jessica leading Nina by the hand; Kate with her arm around Lucy's slender waist. I noticed too that, for some reason, Kate was carrying a plastic bottle...
"Sir, Lucy and Nina were in on it too. " began Kate, "Jess and I think they should be punished too. "
So, they were still using that flimsy pretext! Well, I was far enough into this game to play along. Besides, they do say a stiff prick has no conscience. And mine was getting stiffer by the minute!!
"Well, I guess it's up to Lucy and Nina, isn't it? Do you want to be punished, girls?" Both grinned and nodded enthusiastically.
I positioned myself on the leather sofa, just as I had the previous night, while Kate and Jessica led Nina, like a sacrificial lamb, towards the place of spanking. As she positioned herself over my lap I gazed appreciatively at her gorgeous dark-skinned body - her firm thighs disappearing under the hem of the shirt, her rounded breasts gently bouncing, the nipples already hard and roused against the soft white cotton. Her beautiful young face, with its enormous brown eyes and full luscious mouth, was framed by a long mane of glossy black hair currently tucked inside the shirt. It would be a great pleasure eventually to release those flowing locks and spread them out sensuously. As Nina laid herself across my lap I thrilled at the sight of those muscular thighs and the contrast her glistening coffee-coloured skin made with the pure white of her flimsy shirt.
Jessica slowly lifted Nina's shirt to expose the most delectable arse I had ever seen. Both Jessica and Kate possessed fantastic buttocks, but Nina's flawless globes were quite beyond belief! Firm and muscular, but with the softest, smoothest skin and a deep, inviting cleft, they were just made for stroking, spanking and teasing - and that was exactly what I intended to do.
Well-practiced by now in the art of chastisement, I immediately began with strong, sharp slaps, which issued a loud CRACK! and caused Nina to cry out in shock.
"Shit!!!" This was the first word I had heard Nina utter and it was spat out with real venom.
"Oooh Sir!" giggled Kate, "Did you hear what Nina just said?"
"Yes Sir," added Jessica, with a grin, "I think she deserves extra punishment don't you?"
"Fuck off, you bitches!" said Nina, clearly recovering her breath from the initial shock, but turning round with a big smile, convincing me that I hadn't overstepped the mark. "I'm quite capable of taking this without any help from you lot. "
Slightly less fiercely, it must be admitted, I continued to spank Nina's deliciously wobbling mounds, my erection now pressing urgently against her hard tummy. I alternated each series of slaps with gentle, soothing stroking across her twin mounds, my fingers occasionally brushing casually against her crack. Nina began to writhe and wriggle in response, her crotch pushing towards my own.
Suddenly Kate dashed off into my kitchen, carrying the plastic bottle she had brought. Moments later I heard the buzz of the microwave.
"Olive oil. " explained Jessica, "Great for the complexion!"
"Extra virgin. " chuckled Lucy.
"About the only thing around here that is. " panted Nina.
The microwave pinged and Kate returned clutching the bottle. "Always nicer when it's warm Sir!"
These girls were obviously no strangers to this sort of thing. I was supposed to be their teacher, but in this respect they were certainly teaching me.
Kate turned the bottle upside down over Nina's buttocks and allowed some of the warm oil to dribble out. I knew exactly what to do and began smoothing the oil across her delicious arse. Kate joined in, soon followed by Jessica. Three pairs of hands were now rubbing oil all over Nina's gorgeous bottom and down her thighs. Our hands freely insinuated themselves into the crack between her cheeks, spreading the oil into her cleft, across her shaved pussy-lips and around her anus. I snaked my fingers round to the front of her crotch to caress her shaved pubis and belly, touching my own penis in the process and lubricating it with some of the oil now covering my fingers and dripping from Nina's body.
My caresses were obviously arousing Nina as she started to thrust and writhe, pushing her vagina ever more forcefully onto my fingers, until two of them naturally slid inside her hot matrix of pleasure. My manipulations soon began to ease Nina's pubis towards the tip of my lubed-up shaft and as she slowly shifted position I became aware of another delightful sensation - of knowing fingers ever so gently scratching and tickling my scrotum. At first I was unsure whether the fingers belonged to Kate or Jessica, and this only added to my arousal, but eventually the wicked smile on Kate's beautiful little face revealed her as the culprit.
God, this girl knew how to tease a man! Her fingernails moved over my straining sac with such gossamer delicacy, that sometimes I could hardly be sure she was touching me at all. Then a slight increase in pressure would cause my balls to tense and tighten as the fingers slowly began to stray towards my rod, tickling my pubes and making little circling motions around the base of the cock before continuing along the shaft, slipping towards the tip. At the end of their journey, Kate's fingernails would gently circle and scratch the glans with studied gentleness, leaving me poised excruciatingly between discomfort and pleasure. It was all I could do to continue the manual stimulation of Nina's vagina.
Meanwhile I noticed, with a little ripple of pleasure, that Nina was also involved in a deep, languorous kiss with the gorgeous Jessica, their tongues entwining sensually as Jessica slipped her oil-covered hands inside Nina's open shirt and began to slowly manipulate her breasts. With my free hand, I joined Jessica in exploring Nina's beautiful tits, though for now, due to my position, I had to content myself with stroking them through the thin cotton. Perhaps later I would be able to peel the white shirt open and reveal those mounds in all their glory.
A little squeal, like that of a small animal in pain, made me turn. The sound came from Lucy, lying at the other end of the sofa, shirt wide open and legs apart. With her left hand she stroked and caressed her quite ample breasts, while her other hand gently masturbated her own cunt. She was clearly in need of additional stimulation.
"Jessica," Kate said, "I think Lucy needs your help. "
Jessica was the closest to Lucy and she reacted immediately.
"Turn round Lucy and open you legs. "
Lucy moved onto her hands and knees, her peachy ass pointing towards us. Jessica lay on her back, her head between Lucy's legs, her own thighs now enclosing Nina's head. As Jessica's tongue got to work on Lucy's clitoris, her own began to receive a vigorous licking from Nina. I shifted my hand from Nina's vulva to Kate's at exactly the same moment Kate took my shaft and introduced it into the hot, wet depths of Nina's dripping cunt.