As Mark went to the kitchen to make a big meal for his boys, Ty went up the stairs slowly, now making Dustin aware that someone was coming.
Ty knew he had been a bit harsh with Dustin before going to the mall, but he kinda had to do it to put Dustin in his place, he was still the bully he knew. Using his powers, Ty found out that Dustin was actually in his room, his remodeled room, coming his way. Thus, the second Dustin opened the door and exited Ty's room he bumped face first with Ty's chest. "Hey there, bro. What were you doing in my room?" Said Ty looking down and talking with an intimidating tone.
"Y-you! How did you do all that? Where did you get so much stuff? J-just, who are you!?" Yelled Dustin in surprise, avoiding Ty's question.
"I'm your little bro of course, what are you talking about?" Said Ty as he took a few steps forward with his big size 16 feet. "and what are you gonna do? tell dad?" Asked Ty with a grin on his face.
"Y-yeah!" Said Dustin as he hurried past Ty and ran downstairs. Ty actually let him go downstairs for a second as he really wanted to see Dustin's reaction to their new daddy.
"AHHH!!! D-D-DAAAD!?" Dustin found a hairy hulking figure on the kitchen who he didn't recognize at first, but after seeing the man's face for more than a second, he recognized he was his dad all along. "W-what happened to you!?"
"What do you mean son?" Replied Mark concerned after he had bowed to Dustin. Then, after he left the vegetables he was cutting on the table, approached Dustin ready to help him out with any problem he might had. "Is everything alright? Need a hug from daddy?"
"What?" Dustin took a step back, worry on his face. Unfortunately, he bumped again with Ty's chest.
"Hahahahaha, you kinda cute when you don't get what you want. Come on little guy, it's your turn" Said Ty with a smile as he wrapped one of his toned arms around Dustin's waist and led him upstairs to his new nice bedroom. Ty gave him no resistance as he suddenly knew that he had to listen to Ty and not make a fuzz about it, he also realized that their dad was now the family's slave and that he was going to be home the whole time to make sure his boys were pleased at all times.
"Ty?"
"Yes?"
"It's my turn of what?"
Ty thought that his power, for the first time, didn't work. "Are you making a fuzz again about this?"
"No no, of course not, I was just curious. I'll do anything you say"
"Ahh, I see. It's a surprise then. Don't worry, you won't even notice the change" Said Ty with a smile, relieved that his power didn't fail him. He was, indeed, all true powerful.
Once both of them got into Ty's room, Ty ordered him to sit on the bed while he closed the door for maximum privacy. Unfortunately, Ty realized his room was kinda small, especially now, considering his 6'5 height. From where he was standing he could tell his bed could barely bed Dustin, who was only 6 foot even and, although he was athletic, he wasn't like their dad. He knew that if daddy were to lay on his bed, the bed would probably break under his 350 pounds of daddy muscle. "Hmm, seems I'll have to make a lot of changes to this place later" Thought Ty as he made his room even bigger. He expanded it at least 4 times in length and width so he could have enough space for a big ass siting area. He addedd a massive L shaped leather couch to the corner of his room and a nice modern-ish wood coffee table in front of it. He then camly walked there, sat and then put his big feet on the table.
Dustin was looking at him like he couldn't believe his eyes, but he didn't say anything. He wasn't going to make a fuzz about it, though that didn't stop him from gulping at what his foster brother had done. "Sit here" Ordered Ty, showing him a comfy chair that was right across the leather couch and right in front of Ty. Dustin nodded, stood up and sat nervously in the chair.
"Take your clothes off" Said Ty.
"O-Okay" Said Dustin, still nervous about what he was doing, but it wasn't like he was going to question his brother, he was given an order after all. Slowly, Dustin took off all his clothes and sat back again with his legs close together.
Ty made the room feel warm and then ordered Dustin to open his legs wide. Dustin felt embarrased but did as he was told, he didn't like his brother to look at his dick, as it was just as small as it was when he was 13.
"Don't worry bro, you gonna be fine" Said Ty with a gentle smile as he changed Dustin's personality first. He wasn't going to be a bully anymore. He was still going to be a very dominant man, but humble and gentle as well. He was also going to be very loving and caring with his family, how he was supposed to be. Dustin was going to be a very confident man as well, no longer ambarrased for showing off his body or his skills, he was going to be confident to talk about his feelings and life as well, and confident to do basically whatever he wanted. Ty knew Dustin had a lot of issues in his mind, and being a teenager only made things worse. Ty was just making Dustin mature a little bit faster. With the word 'mature' on his mind, Ty decided that was the ideal concept for Dustin.
Now Dustin sat in front of Ty very relaxed, he felt at home and, more than anything, he looked happy, as he was hanging around his taller-than-him little bro.
"Come on Ty, are you going to tell me what I'll have to do? Wasn't it my turn?" He said playfully.
"Yah yeah, wait a bit more" Replied Ty with a smile as he thought now on the physical changes for Dustin.
First, Dustin had to be huge. 6 feet tall was a bit above average, but their dad was 6'10, and he was the slave. There was no way in hell he could allow any of the two to be shorter than him. Thus, with a happy face he saw how Dustin's limbs started to stretch further and further. His feet got longer and wider, his hands enlarged, and his neck also got longer. As his head shot up, his torso got thinner and his waist even smaller. Finally, Dustin stopped growing once he was 7'6. He was a giant now. If it wasn't because he was sitting down, he would have hit his head with the ceiling. After growing 18 inches, though, Dustin was looking way too thin. Originally, he had the physique of a typical footballer. With some nice meat on his chest, arms and legs and a narrow waist, but now he looked like a very lanky basketball player.
"Oh wow! Ty! Did you do this!?" He said in amazement while he looked at his massive hands and feet.
"Yeah bro haha you like it?"
"like it!? Love it! Look at my feet! They're huge!"
"Big huh? They size 23. That's a bit more than 15 inches long. They are extra wide as well" Said Ty with a smile, happy at seeing his brother happy with him and also kinda turned on for seeing Dustin's gigantic stompers and frame.
Dustin was about to stand up to walk around, but Ty told him to sit down, and wait for the other changes he was about to make. Dustin only nodded with a goofy expression.
It wasn't even more than 2 seconds later when Dustin's body hair started growing again. First, it got as dense as it was when he was originally, but then it started to expand and grow bigger and longer on all parts of his body. In Ty's mind, Dustin was going to look like a bigger and better version of their dad, though Dustin had a bit of a darker shade of blonde hair, so when it all piled up on his chest, you could clearly see it looked a brownish honey colour.
After Ty finished turning his bro into a teddy bear, he started working on his cock. Dustin jumped a bit and watched with a happy expression as his cock returned to its normal size and then it continued to grow unobstructed. Dustin's cock grew hard at the sight of his massive tool expanding, longer and longer until he could use both hands to hold it and still had room.
"omg this is amazing" Said Dustin while leaning back in the chair while holding his tool with both hands. "How long is it?"
"Its hard, so it should be about 16 inches. It should be only 12 inches while soft" Said Ty while caressing his own cock.
"Fuck, bro, I love you so much" Said Dustin while moving his right hand up and down until he came to a realization:
"Wait, this is also quite thick, gotta be at least 6 inches thick or something, will it fit anywhere?"
"7 1/2 actually, and yeah, don't worry. Your gigantic cock will fit anyone you have sex with, don't worry about it" Said Ty with a smile. He hadn't thought about it at first, but after Dustin comment, he made it so that his cock could stretch everyone without hurting that bad and also amplyfing pleasure, so as Dustin could fuck as much as he wanted without problems. Even short people.
Dustin couldn't help but keep on masturbating at his new size, he was loving it. He was now a very dominant man and loved to be in charge, not with his bro tho, he saw him as an equal if not a superior being, but with everyone else? He just couldn't get over at how huge his cock and feet were, he really wanted to fuck, but his little brother told him to stay sitted so he did. Ty didn't say anything about not fapping though, so he kept enjoying the changes.
"Ugh, Ty I love you so much" Said Dustin while tilting his head back and moving both his hands up and down,
"Haha, you hang in there bro, we're not over yet"
Dustin only released a moan and closed his eyes when Ty started working on his muscles.
Daddy looked like a viking, but Dustin had to be way bigger than him. "Hmmm, how much should you weight?" Thought Ty as he looked at Dustin. "Welp, there's no point in holding back" concluded Ty and decided Dustin's new weight was going to be 600 pounds of mostly muscle. And thus, Dustin started to grow thicker and thicker as his muscles expanded. His jiraffe neck turned into a bull's as his shoulders got more mass. His biceps exploded into enourmous 34 inch canonballs and his hairy forearms got all veiny and thick. His hands grew into massive bear paws with very thick fingers. His chest ballooned and expanded forward, creating a pair of hairy pillows with both nipples looking down and a nice cleavage formed inbetween them. His tummy remained flat with the exception of the abs that started to sprang up one after another. Unlike his dad, he didn't have a round belly, but more like a narrow waist in a very superman-like fashion.
Dustin looked like he grew a couple of inches in his seat, but it was only the muscle mass of his ass which expanded, giving him an unforgetable hairy ass that could hold his weight like nothing. His hairy thighs became so thick that Dustin had to break the chair's arms as he needed the room for his massive pair of hairy balls which he kept moving up and down as he enjoyed the feeling of his cock on his extra strong and big hands. His calves got thicker and thicker until they were thicker than many guys' torsos. His feet, covered in a short sheen of blonde hairs, got veiny and thick, so as to ensure he could keep his balance without problems.
Ty also made all of Dustin's body immnune to all diseases and reinforced his bones and skin, so he wouldn't break anything in case he fell, nor would he get any injury in case he wanted to punch something with all his strength. With his new personality he wasn't likely to do so, but you never know.
"AAAAAAAAAAAAAAAGHHHH"
Dustin erupted and threw volley after volley of alpha teen spunk. His semen splashed on top of his massive hairy chest, his legs, it even hit the ceiling and the walls and, mostly, it fell right on top of Ty. Ty could only smile while he drunk Dustin's cum as if it was an energy drink. There was cum everywhere, Ty could only approximate Dustin's cum to be near 3 liters in pure white semen.
"You okay bro?" Asked Ty with a smirk on his face full of cum
"Y-yah" Said Dustin, his massive hairy chest going up and down after the exercise. Then, Dustin finally opened his eyes and realized what he had done to Ty's room and him as well.
"Oh my god, I'm so sorry little bro" Said Dustin while he stood up only to break through the ceiling without any effort. Ty's ceiling was only 7 feet tall, so all 6 extra inches of Dustin gigantic powerful frame went right through unhindered.
"Oh shit, sorry again" he said as he crouched a little bit and walked towards Ty.
Ty was super turned on at Dustin's new height but didn't do anything yet, he just replied with a laugh "Hahaha"
"Its okay big bro, you're a real man now"
Until yesterday, Dustin looked the part of a 16 year old, but now, even if Dustin was resized into a more normal/common height, he would still look at least 25, as Ty didn't forget of giving him a permanent super handsome 5 o'clock shadow and a stylish modern hairstyle as well. Dustin was fucking majestic, a norse god no matter how you looked at it.
Dustin, on his account, could only smile at what his little bro had done for him and so he got further down and picked up Ty effortlessly to give him a warm hug.
Dustin was now a full foot taller than Ty, so lifting him up wasn't that difficult, and so he held him with his massive arms against his torso while he kissed him over and over on the cheek. "I love you so much little bro" Said Dustin while he rubbed his bearded manly face on Ty's. Ty, on the other hand, gave him a strong hug in return as well. He really loved this version of Dustin. Eventually though, he forced Dustin's face off him as his beard was too scratchy and asked him to put him down.
Dustin immediatly put his bro on the floor again and with his chest right in front of Ty's face and his right hand pushing Ty's face into his hairy pecs, Dustin gave him another small hug and added a "Thank you"
"Oh right oh right!" Said Ty with a smile "You should go to your room to get dressed, you should have some clothes there waiting for you. You should take a shower first though, your cum is kinda smelly haha. Also, dad should be waiting for us to have some dinner, so meet me there, ok?" Said Ty while at the same time he made the ceiling of the whole house grow to 12 feet tall. The doorframe also grow to be 10 feet and since it looked kinda weird to have a very long door, he decided to add double doors to all the rooms, so now Dustin nor his dad would have to turn sideways to get into the rooms.
Dustin kissed him goodbye and left to do as he was told by his brother. His room looked the same, with the exception of double doors instead of just one and a way higher ceiling than before, though it was quite small now with his new size. Dustin planned on asking his bro for a bigger room if it was possible, but he didn't linger for too much and went to shower. He thought he was going to need go back to his brother to ask him to enlarge the shower anyway, but when he peeked into the bathroom, a massive shower that could easily accomodate 30 people was waiting for him. Dustin got hard again and while he showered he started jacking off again. After cuming another 2+ liters of cum, he finished showering and went to get dressed. By the bed, there was a pair of massive size 23 sport sandals, with straps that fit snuggly on Dustin massive feet. He also had a pair of above-the-knee-length white dress shorts that, somehow, molded into his gigantic form. He didn't need to use a belt to know the shorts were going to stay in place, even when his massive hairy quads touched when he walked. His ass felt great and, with the help of a mirror, he realized his crack was clearly visible as the valley between his ass cheeks was quite impressive. The story wasn't so different for his bulge, as you could clearly see the outline of his massive dick in those shorts, and Dustin loved it. For his barrel hairy chest, he had a navy polo shirt that although it did look too small for him, when he put it on, he realized the fabric stretched like it was nothing, fitting him snuggly at both his waist and his massive broad chest. The neck of the shirt had a V form and had 2 buttons, but he decided to leave the neck open so as a tuft of his blonde hair would peek out, he knew Ty would like that. After he got dressed, for the kicks of it, he decided to lay down on his bed, only to be met with close to no resistance as the twin-sized bed succumbed under his weight, he even laughed at the fact that his massive feet didn't even leave the ground as his legs were too long. After this happened, he was about to remove his pants and underwear because he was started to get a hard-on again and didn't want to tear the clothes his brother gave him, but somehow he knew his underwear would absorb any kind of precum he leaked and that both his underwear and pants would stretch to accomodate his gigantic cock. Dustin could only smile, as he got up he heard his dad's voice from downstairs.
"Everything alright up there?"
"Yeah dad, I'm coming" Answered back Dustin as he left the remains of his bed right there. He hadn't realized, but after his changes, his voice had gotten much more deep, a rich baritone that sounded pretty cool actually. He didn't think of his voice for too long as he loved the sound of his massive footsteps on the stairs. His massive weight clearly making each step creak while Dustin walked carefully, his feet too big now to put his whole foot in them.
When Dustin got up to the kitchen, his dad immediatly bowed, though Dustin didn't pay him much mind as he couldn't help but look at the food. His dad had been wise and prepared a lot of food for both boys. Dustin rubbed his hands and quickly sat at one side of the table, the table already higher to accomodate Dustin massive long and thick legs, and the chairs were as well twice their former width, as his bubble ass was huge. Dustin knew this was probably something done by his brother, but didn't linger too much on the thought, as he was being distracted by his dad's figure. Thus, while waiting for his bro, he said "Come here dad, sit on my lap while we wait for Ty". Mark could only smile and immediatly went to sit on his son's massive quads, ready to plase him in whatever his oldest soon needed.
Meanwhile, Ty was working on something else...