“Would you like me to pull them down I asked, voice trembling a little with my own anticipation

“Yes please, take them off”

I reached my hand to the far side of her waist so that I could pull her knickers off evenly and as she shifted her weight I was able to slide them down to her ankles. Unlike Gail, she did not wear anything under her gym knickers and so she was now almost naked, just her blouse covering her trunk, the very top of her buttocks and her pussy. She kicked them off and then lay back down onto my lap, handing control back solely to me. I rested my handed lightly upon her bottom. Apart from the red marks from our earlier encounter, her creamy white complexion was as much in evidence on her bottom as everywhere else. I gently stroked her, allowing my hands to trace the transition from cheek to thigh. I looked down and decided upon a spanking strategy. I had never properly spanked anybody before although I had often fantasised about it. I was nervous and uncertain about a number of things. What if I hurt Libby, either physically or mentally? What if we were caught ? I had no idea when her mother would be home or what the reaction of Claire or Gail would be. I was sure Libby did not want to have sex with me, but no doubt she could feel my hard on through my trousers and like any 15 year old boy I would have fucked her at the drop of a hat. Fortunately, Libby’s arousal grew greater as I gently stroked her and tried to rationalise my fears. She squirmed a little and opened her legs slightly, causing a fresh wave of worry for me as her tight pussy lips peeked out from between her buttocks. It was all I could do not to come there and then, so I felt now was the time to start. I lifted my hand about 18 and cupping my fingers slightly brought it down firmly on Libby’s left buttock. The smack landed with a satisfying noise but without any real power. I repeated the stroke on her right buttock, this time a little harder. At every spank, Libby tensed momentarily before relaxing back onto my lap. I carried on for a few smacks, getting harder all the time. Her bottom seemed to rebound from the spanks very well. There was very little wobble when my hand landed, just the flexing of the muscle after each shot. It gave the impression of being very well toned, but the truth was more that she had yet to gain her womanly shape.



After about 20 strokes a red glow was becoming visible on Libby’s bottom and I decided to stop. Having no experience of giving a real spanking, I was worried that I was doing her real damage. I know now that we should just have been getting started, and that her warmed up bottom would have taken much more attention before so much as a bruise resulted. I rested my hand on her bum, feeling the heat radiating from it.

“Thank you she said, surprising me totally. There had been no tears or cries of pain, just the occasional flinch as the spanks landed. I think I expected her to just get up or hurl abuse at me as her tormentor. It was only later that I realised how much she gained from the experience.

“Have you been spanked before ?”

“No, my mum used to smack us now and again, but this is different, it’s not a punishment, it’s a deep fantasy played out in real life, I feel tha….”

Just then the door crashed open and Gail and Claire came bounding in. Libby jumped up, her hands covering her pussy from view, but not before I had appraised her smooth hairless slit with an engorged clit just poking out.

“Have you just smacked her ? exclaimed Claire, her eyes wide. I thought we heard something Libby pulled on the skirt I had discarded earlier and replied brightly Well, he did promise and it’s your turn next The atmosphere changed totally. The intense loving and sensual period we had just enjoyed was replaced by the playful tone of our earlier school encounter. I am sure Libby wanted to hide her sensations of pleasure from the spanking from Claire, at least until she knew how she felt about it and would react. Gail blushed to almost the same colour as her hair and said very rapidly You’re not smacking my arse, all I want is my knickers back and then I need to go before my mum worries”

“Sorry, I replied Still wearing them. You can have them back tomorrow. Do you want to see me spank Claire before you go ? She froze by the door and turned to watch the unfolding action.



Claire was still looking at Libby appraisingly. Lets have a look at the damage then Libby turned round and raised the skirt, the redness already fading. Did it hurt ? Claire asked

“No, not really Replied Libby That’s why I let him take my knickers off. Claire bit her lip and looked apprehensive. You stripped off in front of him ?”

“Not much, I was laying across his lap at the time, it was only my bum he could see I didn’t correct her.

Claire was obviously still not convinced. I grabbed her wrist and guided her fully clothed onto my lap. She kicked her legs and tried to scrabble free, but I held onto her wrist and bent it behind her back in a sort of half nelson. She squeaked with pain as I tweaked it a bit further and she lay quietly. I placed my free hand on her bottom and caressed it gently. Claire reacted totally differently to her sister.

“Just get it over with will you, I can’t stand waiting like this She pleaded. I obliged by landing a good whack across her skirt clad bottom. Not the clean smack of a naked bottom, but the thud of my hand having it’s energy dissipated through at least 3 layers of material.

“Owwww She screamed OW OW OW OW OW as I landed another volley of blows.

“That’s no good, I want to see you get a good spank on the bum like I had said Libby. She moved across the room and undid the zip on Claire’s skirt. Claire looked round and started to mouth No but Libby persisted and continued to tug the skirt off. I glanced up to see Gail watching, her expression one of concern. Libby however ignored her presence and carried on. Tights and knickers quickly followed and soon I had found myself gazing down on a different scene. This second bottom in 10 minutes was very different. Unfettered from the layers of material holding it firm and shapely, Claire’s bum seemed to flatten and spread before my eyes. There were a few dull marks, probably from the spanks already delivered and a definite whiff of muskiness similar to that from Gail’s knickers, but missing from Libby. It occurred to me afterwards that when Libby had run on ahead, she had taken the opportunity to freshen up in the bathroom and don a clean pair of knickers prior to the rest of us arriving. Claire kicked her legs, revealing her pussy. Almost as tight as Libby’s but with just a little wispy hair, I tried to ignore it and concentrate on the job in hand. I shifted her weight slightly, feeling her bust press against my legs, not a sensation I could have got from Libby.



I think that I probably started on Claire’s bottom at the weight I finished off with on Libby’s. Her cheeks wobbled wonderfully on every spank and she yelped like a scolded cat the whole time. After 10 smacks and no sign of the redness I had seen with Libby, I stopped. It was obvious that although Claire had sort of enjoyed the encounter, she did not share the emotions of her sister. As soon as I rested, Claire lifted off my lap, pulling down her blouse to cover as much of her midriff as possible. I saw that the front of her pussy was covered with a light frizz of pubic hair before she moved her hand down to cover herself, grabbing her clothes and backing towards the door without another word. I looked at Libby apprehensively. Is she OK ? Libby shrugged.

“I think so, I’ll check”