Max and Liam had really enjoyed their latest experience and both agreed that pretending to be a couple of hot girls from school was good fun and made it more exciting albeit that they both wished it was the real thing. So they decided that with the onset of the school holidays they would try and get the two sisters to join them for some fun. Max would get Charlotte to join him and Liam would get Sarah-Jane. They would ask them around to help with their holiday projects.

The plan worked and both girls agreed to come around albeit that they did not know that the other one was going. Sarah-Jane arrived first and Liam took her to his father’s study room and when Charlotte arrived Max sat her down in the kitchen. They both worked on their projects for a while and then as planned they managed to get both girls in to the same room where they were both as surprised as the other to see each other. “What are you doing here?” they asked of each other in unison. “Working on school projects” came an almost immediate response from both and they started giggling. The two boys also had a chuckle and when asked what was so funny Max confessed at how they had pretended that the girls were really with them in a similar situation when they had done some stuff together. “What kind of stuff?” enquired Charlotte. Both boys blushed and glanced at each other with neither of them wishing to admit what had happened before. “Cat got your tongue Max” asked Charlotte. “Well never mind because myself and SJ pretended you were with us the other day and the sort of stuff we did is also a bit embarrassing to be honest.”

“What did you do SJ?” Liam blurted out for he knew that she would not be able to keep a secret for too long. “We did some sexual stuff and pretended you were there with us”. The boys had not given away their secret and decided to play innocent for the moment as things were looking up.

“Wow” said Liam “as we are both here now why don’t you get us to do the same thing for real?”. The girls quietly spoke to each other and perhaps a shade reluctantly agreed that it might be fun but only after the boys admitted what they had done too. Max spoke up and declared that the boys always measured each others penises on their birthdays and that on the last occasion they had pretended that the two sisters had done it for them. Max used the word penis as it had been used in one of their human biology classes and he was not sure what other word the girls might use. Max had left out the mutual masturbation part as he thought it might put the girls off a bit and anyway their plan was going very nicely.

“Ok girls, let’s see what “we” got up to before” and with that the girls stripped down to their bras and pants and sat at both ends of the settee and then patted the space next to them. Max was sat down next to Charlotte and Liam next to Sarah-Jane which was fine as it put both age groups together which was more suitable.

“The first thing we want you to do is to take a good look at our breasts so please take off our bras”. The boys could hardly believe their luck and immediately started fumbling with the girls bra straps. Being total novices they were not very good at this task and the girls had to help both of them out and after undoing the clasps they both held their bras to their chests and then encouraged the boys to take hold of their bras which they did with great enthusiasm and revealed the lovely young breasts of both of the girls. Charlotte was a bit bigger than her younger sister and her nipples were noticeably larger but both had a good sized pair.

“Come on guys, have a good feel” exclaimed Sarah-Jane and the boys were quick to make a grab and get their first feel of a girl’s breasts. “Whoa, steady on, be a bit more gentle boys, let us show you what to do” said Charlotte and both girls grabbed the boy’s hands and showed them how to caress and hold their breasts and also how to touch their nipples. “If you want you can lick our nipples too” and without any further invitation both boys started to run their tongues over the girls now erect nipples. Talking about erections both boys were now as hard as iron and both their cocks were straining to be released but that would have to wait and the boys just hoped that in the fairly dim light that the girls would not yet notice the bulge in their pants. As the boys tongues swirled over the girls nipples they too were becoming very aroused and they both became both warm and wet between their legs and they now needed to be touched down below. “Hey guys have you ever touched a girl’s pussy” whispered Charlotte and both boys stated that they had not even seen one let alone touch one. “Well, both myself and SJ haven’t seen a boys stuff either so it looks like it will be a lucky day for all of us”. With that both girls lifted their butts off the settee and took down their knickers. There was an instant smell of sex in the room and both boys got their first glimpse of a girls sexual area.

Being such novices they were not sure what to do albeit that the twitch in their cocks let them know that this was all so good. The girls laughed with the boys and agreed to show them what to do and placed a couple of fingers between the now moist lips at the entrance to their vaginas. The boys watched intently and were then guided towards the glistening mounds and pushed a finger in to the warm and welcoming cave. This was just ecstasy for both them and the girls and the two boys looked at each other and gave a nod of approval. Whilst the boys pushed their fingers in and out of the rapidly moistening holes the girls both played with their now fully engorged clits. Silence was in the room albeit for some vaginal noises and a sort of purring from the girls. “Please touch me here” exclaimed SJ and she led Liam’s fingers to her swollen love button. Max watched what was happening and did the same to Charlotte as both girls squirmed in their seats. This carried on for about 15 minutes and whilst the girls were not fully sated Charlotte decided that it was now the boy’s turn. “Ok guys we hope you have enjoyed that but we don’t want to be selfish so now it is your turn.” This excited the boys and Max turned to Liam and suggested that they first went and washed their hands in the bathroom. When they got there Max asked if Liam was clean to which Liam stated he was going to wash his hands properly even though he wanted to keep the smell of the girl’s sex for as long as he could. “Are you also clean down there?” Max retorted and pointed to his brother’s crotch. Liam protested that he was but Max insisted that they both should have a quick wash to be on the safe side. Reluctantly Liam took down his trousers and briefs and Max did likewise. Much to Max’s surprise was how much more his younger brother had grown since they last really got up close and personal. He was now sporting a much thicker cock and his balls seemed much bigger too. Whilst he was not yet as big as his elder brother he was certainly going to give both girls a decent eyeful and Max told Liam that perhaps he should go first with the girls so that they could better benefit from their undivided attention. Liam was happy with this and after both boys had unrolled their foreskins and made sure they were fully clean they put back on their underwear and trousers and returned to the lounge where there was an air of anticipation in the room. The boys quickly removed their shirts and sat back on the settee but this time with Liam sitting between the two girls. ” Liam is going to go first and I will assist in showing you what to do” Max ordered with a certain amount of authority in his voice. “Well as long as you don’t bottle it yourself then that is fine” replied Charlotte. “Don’t worry about that as I can’t wait to have two such lovely girls doing things to me” said Max “and I don’t think Liam can wait much longer too!”.

“Yeah, come on girls I don’t know if I can wait much longer. Get the tape measure first as I know I have grown again since my last measurement. If you see next to the tape measure over there you will also see the last measurements we had. Charlotte got the tape measure and chart and showed it to her younger sister and they both gasped. “Are these for real?” “Of course they are” stated Max. “Wow, SJ” cried Charlotte “that means that Max is bigger than a small ruler” at which point Liam cried out that he was almost as big as a small ruler too nowadays.

At this point he took off his shirt and loosened the belt around his trousers. He then stood up and pointed out that the best way to measure him was for him to stand up. He did so and let his trousers fall to his knees and then instructed Sarah-Jane to come closer and he then took her hands and guided them over the now impressive bulge in his underpants. He did not yet have an erection but it felt good as the younger of the two girls felt the outline of his cock and then he got her to gently touch the outline of his now quite impressive balls. “Do you confirm that neither of you girls have seen a boys stuff before” enquired Max and both girls answered in the negative albeit that they had both seen younger boys on the beach but as could already be seen from Liam’s crotch bulge they knew that it was not a fair reflection of what they were about to see.

Liam then slowly took off his underpants and the girls kneeled in front of him to get a good look. They saw the head of his penis just showing at the tip of his foreskin with an outline of a sort of mushroom type head below. As well as this hung two pinkish sacks which contained what seemed like two dangling golf balls and these two sacks had a light covering of hair to go with some darker hairs at the base of his penis. Liam assisted the girls in measuring his cock and Sarah-Jane held his still limp appendage which seemed like a sausage made of plasticine and Charlotte, under Max’s instruction measured it out at 10.4 cm (4.1″). “Wow Liam, you really are all grown up now” Max pointed out “I wonder how big you will be with a stiffy”. The girls were not quite sure what was meant by this and Max told them that if Liam got sexually aroused then his penis would get bigger and stiffer. “You mean it will be bigger than it is now?” enquired Sarah-Jane as she was already wondering how something this size was supposed to fit between a girls legs. “Well if you help him out I am sure we shall see” and at that point Liam sat back on the settee, put his hands behind his head and said “I am all yours girls”.

At this point Max went and stood behind the settee so he could get an unobstructed view and be able to help the girls. Both girls were just looking at Liam’s bits and pieces as they took in their first view of a young man in all his glory and thought about what to do next. What they did notice was his balls hanging between his legs and his penis slightly to one side hanging over them. They also noticed a certain swirling motion in his ball sacks and a certain strange musky aroma coming from the area.

Max told Charlotte to take hold of Liam’s cock and hold it up nice and gently between her fingers and then for Sarah-Jane to gently touch his balls. The skin on Liam’s cock was very soft and she was fascinated by the head of his cock with a purplish colour and a small slit in the top. As for Sarah-Jane she could feel the loose skin with what seemed like a couple of harder ball shaped forms.

What was to happen now was a bit of a shock to the girls as without too much more attention Liam’s ball sacks started to tighten up and his penis started to grow and harden up. After what seemed like just seconds Liam’s cock was pointing straight at his own belly and the head was not only protruding from its protective covering but also had some fluid oozing through the slit at the top. “Rub that fluid over the top of his cock” Max offered as an instruction and the girls duly obliged. “Now get the tape measure and let’s see how big my not so little brother has become in the last few months”. They duly measured as per normal and agreed on 15.2 cm (6″) a length that Max knew was at least as big as a good many grown ups. “It’s huge” cried out Charlotte and Max agreed by replying “Not bad, not bad at all” accompanied by a slight grin. “Don’t say that yours is even bigger” Sarah-Jane enquired with a wide eyed look. “Well that is for you to find out. As for now I think he needs some help to finish things off” Max pointed out.

“What do you mean by that?” asked Charlotte. “Tell them Liam”. “Well, I could do with your help in making me cum now girls and I hope Max will show you how to make me shoot”. The girls had heard about boys shooting stuff from a couple of other girls in school who claimed to know about such things, although whether they had actually seen such a thing was up for debate.

“If you lightly hold Liam’s balls Charlotte and then Sarah-Jane if you make a fist around his cock just below that purple head and move up and down you will see his skin slide back and fore over the head.” Max instructed. The girls duly obliged and Sarah-Jane in particular was fascinated at how soft the skin was and how hard his cock was inside the skin covering. She continued to pump away at a pace that suited Liam and he sat there in a state of pure enjoyment as his orgasm started to build. He had not had a wank for a couple of days and was now desperate to cum. “How much longer do we do this for?” asked Charlotte and she was advised by Liam that it would not be long now.

Meanwhile Max now also hard as hard an erection as he could remember and was wishing that Liam would hurry up so that he could take his turn with the girls. “Speed up a bit SJ” he encouraged and she did indeed pick up the pace a bit. For a change a small amount of precum oozed out and the girls asked if that was Liam’s cum to which Max stated that it was not and was just to help his foreskin slide over his head a bit easier and was a lubrication that would make things easier if he was having sex. Max was still standing behind the settee and he gently ruffled his younger brothers hair “You nearly ready to cum bro?” he enquired “I am getting a bit too horny here!” The girls both looked up at Max and he realised that they could not see below his waist. As they went back to work on Liam he decided that he had to get his cock out from his clothing as the pressure needed some release.

“I think I am cumming” cried Liam and with that he started to thrust his hips in time to the fist pumping he was getting and then he grunted “Uuuuuugh” and a small amount of semen flew from his cock followed by a bigger string of cum and a couple more squirts and he was done. It was a much larger quantity than he had produced before and it dropped off Sarah-Jane’s hand and on to his belly. Both girls were as much disgusted as they were fascinated and Liam had a big grin on his face. It was a big moment for the girls to see a boys sex come to a climax and they both had a warm feeling between their legs and they touched themselves feeling the warmth of their own sex. Max saw them and told Liam to go and clean matters up with some tissues and at the same time he repositioned his cock inside his clothing.

“Are you ready for me now girls?” he enquired. “Ready when you are” they responded in almost unison. Max’s cock had now gone soft again but at his age getting another hard on would not be too difficult especially with the two lovely sisters to help him out.

He took his place where Liam had been sitting and he noticed an aroma which was new but exciting. The aroma was that of sex. Liam’s sex mixed with the two girls aroused scent. He lay back and with a growing confidence the girls started to take down his trousers. They were suitably impressed with the bulge in his underpants and could not wait to see what a slightly older boys package looked like. Without wasting any time they literally tore off his pants and then glanced at each other as they revealed Max’s semi erect cock. As far as they could tell his balls were just a bit bigger albeit definitely covered with more hair. As for his cock, well that seemed about half as thick again as Liam’s and a bit longer. More precum had oozed out and his purple helmet was bigger and more defined behind its covering of skin. “Get the tape measure out before he gets a stiffy” squealed Liam and Max stood up so that he could measure his length. He was not sure if he had grown much although his recent erection felt bigger and stronger than before. Charlotte took charge of the measurement of his still soft cock and agreed on 11.9 c.m. (4.7″). They both now wondered how big it would be compared to Liam’s when they got it hard. Max lay back and Liam went behind the settee as his brother had done in case they needed some coaching. The girls looked in wonder at Max’s almost adult genitals. This time Sarah-Jane started to play with his now tightening balls while her older sister went to work on the now stiffening organ. Just like Liam it was not long before Max’s cock was fully hard and pointing up towards his belly. The shiny liquid that had spilt out on to his bright purple head had seen his foreskin slide back behind the head revealing a threatening looking vision which seemed twice the size of what they had seen from Liam. Charlotte made a fist over his penis but unlike Liam’s cock she could not get it all the way around. Max’s cock also seemed a bit veinier but it basically felt the same as she had briefly felt Liam’s cock which her sister had brought to a climax. “Please stand up so we can measure” and Max stood and the girls were in awe as it swayed back and forth. Charlotte again did the honors and both Sarah-Jane and Liam clapped as the result was announced at 18 c.m. (7.1″).

Max sat back down and the girls went to work on him. Charlotte pumped up and down enjoying the ease with which his foreskin slid backwards and forwards over the glistening head. “Just to let you girls know that I won’t take very long as I had a hard on for most of the time you were looking after Liam” cautioned Max.

In what seemed like no time at all he could feel his orgasm rising and with that his breathing also quickened. Both girls were now on his cock as they could fit both hands on his very engorged organ. “Here I go” he painted and then, whooooosh. One sticky rope, a second, a third and perhaps three or four more contractions of his cock as he unloaded what seemed like a never ending torrent of thick white sticky fluid. Even Liam was impressed and Max admitted he had been saving his spunk up for three days. He was sated and as his erection subsided his balls slackened again and he looked at his younger brother who was standing there with a cheeky grin and another impressive erection. “I think he is ready to go again” Max declared and whilst the girls would have been happy to help him out again they both declared that they needed to go home but they would love to do it again. They agreed to meet again in a couple of days time and they left the boys to clean up. After they had gone the boys hugged each other and agreed that it was a great time and they would be ready to play with the girls again when the time came.

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