"Whoa", you say to your reflection as you look at yourself in the mirror. Staring back at you is a reflection of your older brother, Chris. You are much taller, more muscular, and more masculine looking than before, in your old boyish body. "This can't be real", you mutter to yourself, surprised that your voice was much deeper than before. It sounded manly and strong. You look at your neck and see a large adams apple sticking out.
Looking at your head and face, you see that your old hair had shortened up into a crew cut, and had gotten a shade darker, making it a dark brown. You see some light stubble on your chin and above your lip. You rub your hands over it, feeling the little stiff hairs. "This is insane!", you think to yourself. "I guess I'm going to have to learn how to shave!".
Standing there wearing nothing at all but your brother's large shoes and the magic socks, it becomes apparent that another big change had occured. You look down and see that your cock was much, much bigger than it was before. You new member was about 8 inches long, soft. It was very thick, too! It was very heavy, dangling and flopping around between your legs. Likewise, your new balls were much larger than average, as well. "I had no idea my brother was carrying around this monster the whole time! No wonder he is such a hit with the ladies!", you say aloud to no one in particular.
You see a huge brown bush of curly pubic hair erupting from above your member. There was a ton of hair! The bush spread upwards, turning into a thick treasure trail up to and past your belly button. You touch the hairs on your abs, noting that your abdominal muscles were very hard and defined. You easily had a 6 pack when looking in the mirror! Your gaze goes up further and stops when you see your much larger pecs sticking out. Like your abs, they were very defined and looked well developed. You didn't have any hair in the center of your chest, but you did have a few thick hairs circling your new nipples.
You see your new biceps looks quite large, and they were covered in veins. You strike a pose in the mirror, seeing your mounds of muscle pop up. You grin to yourself seeing your huge biceps. "Man, I'm glad Chris worked out so much!", you say to yourself. You pop a double bicep pose and admire yourself again. With your arms up, you see a huge brown bush of hair in your armpits. "Whoa, I have pit hair now?", you say to yourself. You raise one arm all the way up and examine it closer. "Yup. That's a big bush of pit hair you now have". Just then, you notice a stench in the air. You take a sniff of one of your armpits and cringe. It reeked like a teenage boy just out of puberty, with bad hygeine. "Uggh, I always hated how Chris always smelled all the time. I guess I'm going to be the smelly one all the time, too", you say. You lower your arm, resting both at your sides. You notice that your armpit hair is still sticking out, even with your arms at your sides. "Man, Chris is one hairy dude".
Lastly, you looks down at your legs. They look so much longer and powerful. They are covered in thick muscle and veins, and not to mention all the hair. They were covered in a thick brown coat of body hair. The hair continued all the way into the socks. You take off the shoes and peel off the socks. You see your new feet are huge! About size 13! You can see thick hairs sprouting on the tops of your feet and on the toes. Another smell begins to permeate the room; Chris' stinky feet. "Man, Chris is pretty stinky!", you chuckle to yourself.
You take one more look in the mirror, still in shock at how you have changed into your brother.
You turn around and look around Chris' room, trying to find a pair of clothes to fit into...