"Sure thing!" Simon said as he loosened the restraints on his newly muscled friend. He offered his hand and Ricky took it. "Whoa! Everything feels so different when you're taller!" Ricky exclaimed as he flexed a bit. "I know, right?!" Simon replied. "So, what do you want to do?" "The better question might be what don't I want to do man? We're adults now! We can do whatever we want. And I know we can't just hog all the glory to ourselves." "You mean..." "Exactamundo! Let's call Billy and John!" Billy and John were the name of two nine year old twin brothers from across the street. They were good friends with Simon and Ricky in spite of their age differences. "Oh, that's a great idea, dude! Those runts are gonna be adults too?!" "Heck yeah! And I've got one more idea too!" "Oh? What is it?" "Come closer." Simon did as he was told as Ricky whispered into his ear. "Seriously?" "Yeah. What do ya think?" "That sounds so messed up.... I love it!" "I know! So wrong, but so right!"
As they imagined their plan, both Simon and Ricky's dicks shot up erect. "Whoa!" Simon said. "My wiener is even bigger!" "I hear all adults wiener's do that!" "So cool!" "Well, let's get them to come over, then!" Ricky said as he took out his phone from his pants. "I'll text them. 'Hey, guys! I'm over at Simon's. Come play with us! We have something awesome to show you!' And... send!" A few minutes later and Ricky's phone beeped. Simon got closer and read what it said with Ricky. "Sounds cool! We'll be right there!" "Awesome! The two shouted out as they gave each other a high five. "Let's get everything ready. We should get some rope, cause clothes can get loose easily," Ricky said. "Sure thing!" Simon and Ricky got everything ready as someone rang the door. "Is it them?" Ricky asked. Simon looked out the upper window and saw Billy and John outside. "It's them!" "Perfect! Let's go!" Simon and Ricky came downstairs and did the same thing Simon did to Ricky. Simon opened the door. "Simey! Ricky! It's us!" Billy, the oldest by an hour yelled. "Where are they?" John asked. "Dunno! Simon! Rick..." But before Billy could finish, Simon and Ricky scooped them up and covered their mouths.
"MMMMMMMMMMMgggghhhhhhh!!" Their muffled yells leaked out as two unknown to them, naked men held them and brought them upstairs. "Ahhhhhhhhh!! Help!!" Billy cried out as Simon held both of them down, while Ricky got the rope. "Billy! I'm scared!" "Ahhhhhhhh!!" "Shush you too its me, Simon!" "What?!" Billy yelled as he watched this hairy man exclaim he was their thirteen year old friend, Simon. "And that's Ricky!" Simon added as Ricky tied their arms and legs behind their back. "No way! Simey and Ricky aren't big people!" John said. "Don't worry! I thought so too, but then Simon used this machine on me to make me a grown up!" Ricky said. "I don't believe you! Somebody, help!" "Billllllllllyyyyyyy!!" John whined. "Man, I hate to see them like this," Simon said as he cut their clothes off and left them naked. "Ahhhhhhhhhhhh!!" the twins both yelled out as they imagined the worse. "Don't forget the plan, dude!" Ricky said. "Oh yeah!" Simon took John's body and flipped it. John watch as his big brother's penis squirmed in front of him. Likewise, Billy saw his younger brother's penis next to his own mouth. Simon typed in the changes to the machine. "I think I'll make you twenty like me. 6'2" sounds alright with you Ricky?" "So I'll be the shortest. Sounds cool!" "Cool! I think I'll give you hair around the wiener and the nips, but you guys should have smooth skin. Short hair and a swimmer's build. Let's see... I'll make Billy circumcised, but Johnny uncircumcised. Set them to G and... done!" Simon hit enter and the countdown started.
All of the sudden, Billy and John felt a warmth surge forth from their stomachs and spread throughout their bodies. "Ohhh... Billy... I feel funny..." "Ohh... my body... my body..." Simon and Ricky watched as their friends bodies started to grow. Muscle and pubic hair was forming bit by bit. They hit 12 years of age in a few seconds, their moans were getting deeper. They struggled to get out of their restraints as their hands and feet grew. "GUH!!" Then they both let out a huge grunt as they hit 13 years old and the start of puberty. "Aggghhhhhhhhh!!" They yelled out as their bodies grew at a much more substantial rate. Their bodies shook violently as the restraints rubbed against their skin. Each of their penis started growing. Billy foreskin was pushed out as it grew. "Guh! Aghhhh!! It burns!" Billy cried out in a teen's voice. "Billy?! Billlllyyyyyaaaaaaahhhhh!" John yelled at his own changing voice.
"They're really yelly, huh?" Ricky said. "Well they are nine and... oh wait! Here it comes!" Ricky looked back to Billy and John who were about 15 now. Their penis were almost triple the length and girth they were before. The changes to their bodies caused them to start going erect as a bush of pubic hair covered their tennis ball sized testicles. The real reason, Simon had placed them in that position was becoming clear. "Mmm!! No!" Billy yelled as his brother's uncircumcised cock came towards him. "Billy?! Ahhhhhhh!!" John yelled as Billy's circumcised one came towards him. It touched each of their lips. They tried to move away, but they were tied to tight and their dicks were just to big. It soon pushed apart their lips and at seventeen years of age, they were becoming men by giving their first blowjob with each other. "Mmmmmghh! Mmmgghhhh!" they tried to yell as their dicks invaded their mouths. But they could do nothing as their bodies continued to grow.
They were 18 years old now. Basically adults. As they continued to have each other's penises in their mouths, the changes to their sexual orientation hit into full gear. They feared the slabs of meat in their mouths before, but now they were much calmer about it, even enjoying it. "Mmmmppphh! Slurppppp! Mmmmppphh!!" They started to suck on their dicks more and more. Their nipples, which were covered in a thick coat of hair, got erect as well. They no longer cared that they were brothers. They wanted to suck cock no matter what. "Dude..." Simon said as he rubbed his own erect dick. "Goddamm! This is sooooooo fucking hot!" Ricky blurted out as he too started to rub one out. "Ricky?!" "Simon!" The two could no longer control themselves as they proceeded to make out, while rubbing each other's dicks. "Mmmmmppph! Oh my god! Slurrrppp! Ricky!" "Simon! Mmmmppphhh! I love you!" "Ricky! Ricky!" "Simon... Uuuuuuuu! I'm gonna...!" "Me... Me tooooooooo!" "Ahhhhhhhhhhhhh!!" They both yelled out as they ejaculated into each other's faces.
At the same time, Billy and John blew their own load into each other's mouths. "Mmmmgggghhhhh!!" they both let out as they swallowed all the cum shooting out from their dicks. All the struggling had loosened their restraints. They ripped them off and after removing the dicks from their mouth, so they could breath, put them right back in for another blowjob. "Simon!" "Ricky!" the two cried out again. They went into a similar position and proceeded to give each other blowjobs as well. "Oh my god!" Simon thought. "Being an adult is so amazing! I'm glad I did this!" And with that, the four boys, now men, continued to have sex.