The Sixthformers
Copyright© 2023 by Paulypeeps
Chapter 16
Coming of Age Sex Story: Chapter 16 - Identical twins learn about sex with family members and really enjoy peeing.
Caution: This Coming of Age Sex Story contains strong sexual content, including ft/ft Consensual Lesbian Heterosexual TransGender Fiction Incest Mother Brother Sister Father Daughter Masturbation Oral Sex Water Sports Public Sex
We refrained from peeing in the street even though the two cups of tea were starting to make their presence felt in my bladder.
Since we were having a practical we went straight to the physics lab. I was pleased to see that the apparatus that had been put out on the bench was for one of the experiments that we had revised recently. I was especially pleased to see the eureka can which meant that we would easily get away with puddles on the floor.
I sat on the stool to fill in my name on the exam paper, but Erica remained standing to do hers - obviously still enjoying the cum oozing out of her fanny.
While we waited to start I slid forward on the stool and put my toes on the floor, then let out a gentle stream of pee. It soaked in to the back of my skirt and then started to run down the back of my legs, and eventually I felt it in my shoes. I stopped, not wanting to make a noticeable puddle on the floor just yet.
We were allowed five minutes to study the paper and ask the invigilator any questions we had about the setup. No one had any questions, it was a familiar experiment.
As soon as we started I filled the eureka can brim full, and splashed it about a bit, then refilled it. As I set up the sonometer I relaxed my bladder and gently peed down my legs, enjoying the warmth in my stockings and shoes. I did not look down to see if I had washed the cum off of my stocking tops, but bent over a few times facing away from Erica so she could see.
I caught a few glimpses of Erica, and she had white streaks nearly down to her knees now, but did not appear to have made a puddle.
I worked through the experiment, writing it up as I went, squeezing out a little pee each time I sat back on the stool.
I had a bit of time at the end, so I checked the result experimentally, spilling a bit more water from the eureka can again.
I spent the last few minutes checking my spelling and grammar, and then glanced over to Erica. She was now standing in a nice puddle on the floor.
The exam was over, so we gathered up our stuff and took our papers to the front, leaving our puddles for the lab technician.
We were heading out of school when we bumped in to Bryony.
Bryony said. “Caitlin and I are going clubbing tonight, it would be so cool if you could come too!”
Erica said. “It is a bit short notice, and we have a guest. Where are you going?”
“Robert’s.” Said Bryony.
“Cool.” Said Erica.
As we walked to the bus we discussed what outfits we might like to wear, even though we thought it unlikely that we would be able to go. We eventually settled on wearing the sheer black dresses since the weather was a bit warm if we got to go.
We took the bus home, and sitting on the bus we took the opportunity to examine our thighs and the back of our skirts to see how we had fared regarding the cum.
The streaks down Erica’s legs had faded quite a bit where she had peed in the exam, and mine looked much the same but did not extend as far as my knees. We both had similar marks on our skirt linings. We joked about whether Colin would be recovered, and how many times he would be refilling us.
Back at home as we opened the door we were met with an unmistakable sound. Mum was gasping for breath as she was clearly approaching an orgasm.
The sound appeared to be coming from the dining room, so we went in to the kitchen and made a cup of tea, then quietly made our way to the door of the dining room, and sipped our tea while we watched Colin naked from the waist down going at mum who was bent over the dining room table with her skirt lifted.
We were just in time to see Colin grab mum’s hips in a vice-like grip and ram himself in to her, pumping her full of cum. Mum started to moan and gasp as she too started to convulse, and a stream of pee started to patter on to the carpet between mum’s feet.
As mum’s moaning subsided I said. “Hi mum.”
Mum convulsed and froze. “Hello dear.” She said.
Erica asked. “Would you like a cup of tea?”
“Yes please.” Mum answered, a little hesitantly.
Erica and I scampered off to the kitchen and put the kettle on again.
We had just made the tea, including one for Colin when mum came in to the kitchen.
I think mum was a bit shocked at being caught at it with Colin.
Again a little hesitantly mum asked. “How did the exam go?”
Mum was completely ignoring the elephant in the room.
“I think I did all right.” I said.
“Me too.” Said Erica.
I said. “We have made a tea for Colin.”
Mum said. “Colin’s trousers are in the wash.”
I noticed that the washing machine was running.
Erica said. “It’s O.K. we have seen Colin without his trousers.”
Erica called. “Colin! Cup of tea here for you.”
Colin sheepishly appeared from the dining room, his hands held in front of his crotch.
I thought now would be a good time to ask the question. “Mum, can we go clubbing tonight? Bryony and Caitlin are going to Robert’s.”
Mum was a bit more composed now. I think she was expecting discussion about what she was doing with Colin.
Mum answered. “I don’t see why not, Robert’s is a nice club. You don’t have an exam tomorrow do you?”
“Not in the morning.” Erica said.
Mum glanced at Colin. “Perhaps you could take Colin with you? Would you like to go clubbing with the girls Colin?”
Colin nodded, sheepishly.
Erica and I chorused. “Excellent!”
I realised at the last minute. “Just one thing, Robert’s has a dress code, and Colin only has his jeans left. His trousers won’t be dry in time.”
Mum was getting back to normal, and now being her usual practical self. “But don’t you have some spare clothes that would do for clubbing? We must be able to find him an outfit.”
Erica said. “Well, yes, but we don’t have any trousers, or leggings, or anything like that.”
Mum’s eyes lit up with a glint. “This is the twenty first century, who needs trousers to go clubbing. We can make Colin look as good as you.”
Erica and I smiled. We knew what mum had in mind.
I said. “Colin, grab your tea, let’s see what we have in our wardrobe.”
Erica, Colin and I went upstairs with our tea, Colin still using his free hand to hide his crotch.
I immediately got the pair of sheer dresses out of the wardrobe that we would be wearing, and we started to look through the things that would be stretchy enough to fit Colin.
We settled on a long sleeved Lycra minidress which looked like it would work. Colin took off his shirt and managed to squeeze in to the dress. It looked quite good on Colin apart from the sleeves being a bit short, and that he did not have any breasts.
Erica and I stripped the dress off of Colin, and tried to find a bra that would fit him. Unfortunately all of ours were too small.
I called down to mum. “Mum, we need a bigger bra, do you have a spare one?”
Mum came upstairs, went to her room, and returned with a black underwired bra.
We put it on Colin, who was now not hiding his crotch, his dick was now flaccid.
Erica raided the stocking drawer and filled Colin’s cups with stockings, and we put the dress back on him.
Colin looked much better.
Mum said. “There, you are looking hot now Colin.”
Erica said. “Collette now mum.”
Mum continued. “Quite, very hot Collette. Let’s find you some shoes.”
Mum took Collette off to her bedroom, and a few minutes later they returned with Collette wearing a nice pair of strappy heels, probably a couple of sizes too small, but at least they fitted.
Mum said. “You need to teach Collette how to walk again!”
Mum left us to it. We found some jewellery, and then started on Collette’s makeup. We got through a lot of concealer before we started on making her look beautiful.
After about an hour we were there. Collette had the appearance of high cheekbones, big eyes, and the longest lashes we could possibly do with the mascara.
“There you go Collette.” Erica said.
Something had clearly been worrying Collette. “I just need to get my pants.” She said.
Erica quickly corrected her. “No pants. We are feminists. We are bare under our skirts apart from stockings.”
I quickly noticed. “She has not got any stockings!”
Erica ran in to mum’s room and returned with a medium pair of fishnet stockings.
We started to take Collette’s shoes off.
Collette protested again. “But, what if something comes up? You know what I am like. It is a nightmare being with you two especially, I have this permanent erection that only ever goes down for a few minutes and then pops up again.”
I was crouching down in front of Collette, taking her shoe off when I opened my knees a little. I started putting the stocking on Collette, and by the time I had got it up to her thigh she was ready for action making a big tent in her dress.
I put her shoe back on while Erica was working on her other leg, crouching in much the same way.
When we had done we both stood up and kissed her simultaneously on her cheeks.
Erica said. “You will just have to control yourself.
I peed hard, making a hissing noise while I let my pee run down my legs. Erica followed me and did the same.
We left Collette sitting at the dressing table and took off our school uniforms, reluctantly removing my cummy stockings.
Erica and I put on clean sheer stockings, and clubbing heels, and the full length sheer dresses. We adjusted the dresses so that the fabric was gathered around our breasts and crotch area to give an air of modesty, and to turn the long dresses in to mini dresses.
We all went downstairs to watch telly while we waited for dad to come home. Collette sat in mum’s place in the middle of the sofa, and we watched Pointless. This seemed to make Collette’s erection go down a bit so she only had a small bulge.
We heard dad come in, so I quickly lifted Collette’s dress and tucked her dick and balls under her thighs, and then pulled her dress back down so she looked pristine and girl-like.
Dad heard the telly and came in to the lounge.
I said. “Dad we are going clubbing so can you pee on us please, and our friend Collette is coming too so can you do her as well?”
Dad said nothing but just stood in front of Collette and and unzipped. He pointed his dick at me first and started to pee, and I got the first aromatic yellow pee before it started to clear. Dad peed all down the front of my dress before moving on to Collette who got a similar amount all over her dress, and then Erica got the last.
Erica and I said. “Thank you dad.” As dad retrousered and went off to the dining room.
We sat for a minute or so to let our pee soak in and then mum called us to dinner.
We did not say much at dinner, and Collette did not speak at all. Dad did not appear to notice that Colin was missing, and no one mentioned it.
Mum phoned Bryony’s mum to make sure that everything was above board. Bryony’s mum did not know anything about us going clubbing, but arranged for a taxi to take us all.
After dinner we all went upstairs to our room so that Erica and I could do our own makeup, and then all three of us laid on the bed listening to music while we waited for the taxi.
I don’t know what Collette was thinking about but the inevitable happened and a tent started to appear in the front of her dress.
I said to Erica. “One of us will have to deal with that.”
Erica replied. “I was thinking that too.”
I was about to get up when Erica got up and turned on to her knees. Erica lifted Collette’s dress and straddled her, settling down on her dick.
Erica looked up to the ceiling and commenced bobbing up and down, gradually speeding up the rhythm and making the bed squeak. I just laid there next to Collette, gently bouncing up and down.
It was not long before Collette arched her back, almost lifting Erica off the bed. Collette started to thrust, speeding up the rhythm and making Erica start to gasp.
I heard hissing as Erica started to pee, and Collette grabbed Erica and pulled her down towards her as she started to convulse and fill Erica with her cum. Erica then started to convulse as well.
They laid like that for five minutes or so until mum called up the stairs. “Taxi’s here!”
I quickly jumped up and helped Erica climb off and get her dress in to a presentable state. She had peed a little on her stockings.
We both then helped Collette up. She looked O.K. considering. The back of her dress was very wet though. Fortunately her dick was now flaccid and safely hidden.
We went downstairs. Erica and I kissed mum, and we all filed outside and got in the back of the taxi where Bryony and Caitlin were already sitting.
The taxi pulled away.
I told Bryony and Caitlin. “This is Collette. She is staying with us. She is a very special girl.”
Erica pulled Collette’s skirt up and Bryony and Caitlin got to see how special Collette was.
I said. “I think this night will be fun.”
Bryony pulled her own skirt up to reveal her own bare crotch.
I asked. “Caitlin? Are you bare below too?”
Caitlin went red.
Bryony said. “I told you, we are all going knickerless. Take them off or you will embarrass yourself.”
This was too much for Collette. The head of her now erect dick appeared beyond the hem of her dress.
Fortunately Erica, Collette and I were sitting with our backs to the driver. I took Collette’s dick in my fist and set to work.
I was not really sure about what I was doing, but after a few minutes of vigorous action I felt Collette start to throb, and a jet of cum shot across the taxi and landed on Bryony’s chest. The rest just splashed over the back of my hand.
Bryony was not best pleased. “That’s disgusting. How am I going to clean that off!” She said indignantly.
We just sat there for a bit. My cum covered hand still clasped around Collette’s now flaccid dick.
Erica held out her hand and said. “Knickers please Caitlin.”
Caitlin looked around for support.
“Get them off.” Said Bryony, realising what they could be useful for.
Erica lunged at Caitlin and quickly dragged her knickers down to her knees. Caitlin gave up the struggle that she knew she could not win and lifted her legs out of her knickers.
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