Before you could make any motion you here a grumble and a groan at your side, your brother was already waking up at your side without any need of your help as he rises from his slumber. He stares at you with sleepy eyes that stare back at your shocked one before as if feeling something wasnt right. His eye's squint and glare before widen in realization, "w-woah...what?!" Alex shockingly states as he realizes he is chest height with you. As he points at you in shock he sees the tight and ripping remains of his pajama's as they clearly expose newfound muscles. Alex gasps in awe as he feels up his handball-sized biceps that bulge as he flexes ripping his pajama sleeves even more. Moving into his exposed pecs that couldn't be contained by his shirt as they jutted out a few inches from his chest just like your own with a six pack of defined abs riddling his stomach. Alex's broadened shoulders just barely blocked his view of the nice little bubble butt he was sporting too which ripped a hole in the back of his pajama pants and underwear exposing it a slight bit. With him in the front not fairing any better whether it was his thickened legs that gained some definition to them ripping up the side of his pajama pants or that obscene bulge that jutted out as if he packed two of his fist into his pants. His cock definitely the best part putting nates to shame especially since it was a little exposed from ripping the front of his pajama trousers. Alex was looking like a regular beach hunk without having to do any of the work for it and as he looks up at you he smiles.
"WOOOAH" Alex shouts, jumping up and down for joy "This is SOOO AWESOME!!" he continues to exclaim. You begin to butt in, "Uhh...no its not...infact this is the opposite of awesome. " You tell him. He brushes you off with a roll of your eyes. "Justin your just Jealous that you didn't get free muscles." Alex teases as he laughs.
You pout a bit because free muscles are awesome, especially if you were to get given as much of a boost as Alex just got, that would be years of gains without any of the pain. You cant help to say you were a bit jealous but your worry stems from the fact that Alex gained all this and you both dont know why or how. "Sure free muscles is awesome buut...we dont know how you got the free muscles." You try to imply how its bad but..." Ahh ....so you want to get free muscles yourself then" Alex jabs back.
You grit through your teeth cause that's not what you were trying to imply, a bit of an angry fit later, "N-no ...what if these muscles were someone trying to turn you into an evil villain...or something like in those cartoons you watch..." You explain to him. Alex looks a bit dumbfounded, " Oooh...yeah..that would be bad.....but...free muscles..plus they don't really help with the whole...this.." Alex also states as he points to literally everything. From the key still being hung where it was to how everything was still way bigger than you guys. You'd hate to admit it but Alex was right being the fact that they were more so a bonus to the weirdness rather than something...bad...
You let out a hefty sigh,"well...i mean yeah your not wrong but..." and before you could continue the key glows drawing both of your attention to it. The sound of dramatic thunder can be heard and the world-shaking can be felt by the two of you as you fall down with Alex falling atop of you. The shaking continues as you two couldnt stand with the sheer chaos that was ensuing as the key molds itself into a light beam that flies into a different room.
As the chaos slowly stops, you open your eyes and give yourself a look around, nothing seems to have changed with everything still being relatively massive compared to the two of you. "Uhh..this place is crazy.....whats going to happen next.." you exclaim before hearing a rip and a moan. You look down to see Alex shuttering, panting even as his body was inching bigger and muscles bulging wider. His face in great pleasure as he turns to see his biceps going from handball size to basketball size in a matter of moments. His hefty pecs feel like massive chest melons as they pushed hard against your own, with his body inching taller and taller as you can see his blue eyes stare back at your own. Lust and euphoria are deep within his gaze as you can hear his plump muscle butt getting even plumper as it rips out the back of his pajama pants. Followed by the thickening of his legs, his moans grow louder as his cock and balls grow, his nuts swelling up to the size of grapefruit filled with boy seed. Following soon with his cock that thickens and swells as it slides all the way up against his 8-pack abs and just under his pecs with the throbbing head being in the line of sight for you.
Alex groans as grinds against your chest, "God..this feels...so..good...cant stop...." Alex moans out as his hips move on pleasure and instinct alone. The muscle boy's arms held you down and prevented you from moving but even then you were so shocked at the sudden growth you stayed and basked in all of the boys glory. As he ground his cock against you, you could feel the pre-cum leaking out of its tip. The allure and lust getting to you as Alex's grinding gets faster and faster, moans getting louder and louder, as sweat drips down from his body from the sheer effort he was putting in. You look up at Alex who smiles down at you before his face clenches as his climax draws near. You look down and see the cock head expand as his load builds up and shoots onto your face, chest and the floor behind you. Finding yourself getting a mouthful beyond your wildest dreams or fantasies of taking in the spunk of a muscular hunk just ever so surprised to have it be your brothers. Alex then flops down on his side panting , sweating and nude as he admires his bigger bodybuilder-like body.
As you try to clean your face off the two of you stand up and you realize now Alex was a head taller than you, and his boyish beaming face just smiled and laughed it off. The mess that sexual excursion made left you only in your own underpants with the only piece of clothing dry and not smelling like your brothers seed. Although you glare at him over it, you can tell Alex was only a little apologetic towards it so you let it slide. As the two of you wander off, you hear the sound and pitter patter of feet as you approach what should be the living room. The world is still massive but feels oddly walkable you thought as it didnt take as long to get here as you thought. As the sound of the walking drew closer and closer you felt yourself getting uncomfortable and turn to glance at Alex. Who however was on cloud-9 in his own little world as though being nude , muscular and bigger than his own brother just made his day.
The feet draw close enough to end up sound like they're approaching and from the shadows came something that tackled you, you can hear a pair of whinning...wait....whinning. As you open your eye's you see two boys , twins that look to be brothers and oddly enough look like a mix between you and Alex with black hair and blue eyes with similar facial features. They were smaller and younger so couldnt be older than Alex even though now he was gigantic for his age with all the wierdness. However the boys seem...familiar.. you suddenly feel a great headache coming out as your mind is filled with weird memories fighting eachother. Then it dawns on you, these are your twin younger brothers Richy and Ty. You feel as though those memories werent originally there but also feel natural. You also notice that the younger brothers were reaching for you as Alex held them up, "Alex let them go.." you tell him and Alex shrugs his shoulders letting the two boys rush to you and cry into your legs since they were no taller than your waist. "We're s-scared...we thought we were alone in this wierd place.." Richy manages to get out with a tearful slobbery face. " Y-yeah...im glad we found big brothers..." Ty follows up also with a similarly slobbery face. If it wasn't for the fact that both twins were wiping their faces on his bare legs this would be a more happier reunion. "Altho..." both twins say at the same time turning to Alex. "Your super big..and tall...and beefy.." The two said pointing out each feature one by one in tandem.
"Hehe yeah...arent I cool..." Alex says flexing his nude body before the younger boys who stare at him unimpressed,"No..." the two say in unison causing Alex to take a blow to their pride. "you just got a head start is all.., because..." The twins ominously say finishing eachothers sentences as they flex new found muscles causes their shirts to rip off and reveal a chiseled physique underneath. "Your not the only one getting beefier here..." Ty speaks out with a smile. "Yeah look at our own physique.." Richy follows up by saying words no probable 8-year-old should be saying. Honestly your head was spinning with the revelation that the twins too were getting muscular as well. No wonder they tackled you to the ground so easily. "Arent we cool, big brother..?" All your younger brothers say to you as if asking you to choose which one is the coolest. "Uhh...y-yeah.." you say trying to dissuade the argument. However, Alex laughs, "buuut you know what else i did.." Alex teases as he points to his still massive package even if flaccid then points to you. The twins look down at their own bulges and at you before it dawns on them as well. "WHAT!! NO FAIR!!" Ty shouts angrily at Alex. " Your lucky you met big brother first.." Richy grits under his teeth as they all seem to glare at you with an intent that is not so innocent. what happens next?