You recognize your voice and head upstairs where your father is standing with a grin. "Not only did we hit it off but it seems that she wants to go out again" your Dad says showing your phone wih a few text messages. "Thanks a lot Dad" you say eager at the chance to have a girlfriend.
While you scroll through your phone reading the messages you notice your dad look in the direction of the basement. "Is Tim working out?" He asks. "Yeah he wanted to test it out while he was in your body" you say as you finish reading the text messages. You turn your phone off and place it on the table before facing your Dad. "Can we change back to normal?" You ask desperately trying to seek a way out of your new prepubescent body. "I guess we should. After all, the two of you have school tomorrow" he says.
The two of you head to his room and you spot the magic socks in the back pocket of the jeans from before. "May I go first" you ask. Your dad agrees and you begin to strip removing your shirt, shorts and sneakers but to your surprise so does your Dad. "What are you doing?" You ask him. Your dad doesn't answer until he takes off all your clothes revealing your naked body. "There's something I want to do" he says. He walks toward you and extends his hands on to the briefs you still had on. He pulls them down revealing your small hairless dick and undropped balls.
"D-Dad!?!?" You cry in surprise. "I just want to compare sizes that's all" he says pulling you towards him. It feels odd since in Tim's body you're nearly a foot shorter and a lot smaller than your original body which now looks huge in perspective. Even if you wanted to resist, you feel as if you have to comply due to strength your own body had over Tim's. You feel your Dad caress your dick and watch him compare your sizes. It's quite obvious that your Dad's dick is much larger than yours. You would have to guess that your dick was 2 inches while your Dad's, which you had known due to measureing it yourself, was around 5.
"Ok Dad this is getting really weird" you say but you Dad seems to be concentrated on your scrotum. "Doesn't this feel odd?" He says rubbing his hand over your balls which makes you instantly feel a strange sensation. "When I was in Tim's body I realized how weird it was for my balls to be undropped again" your Dad says taking his hands off.
After your Dad finishes, you realize that comparing sizes wasn't such a bad decision after all, in fact it helped you realize the differences Tim's prepubescent body had compared to your developing body and your Dad's mature body. Maybe when you turned into Tim again you should explore those possibilites. You then grabbed the magic socks and place them onto your feet before putting them in your shoes.
The change is instantaneous as you begin to grow taller and skinnier until you were a foot taller than before. You feel your body beginning to develop as you gain slight muscle mass and body hair from puberty. Body Hair begins to errupt over your arms and legs as well as your previously hairless dick. After you finish gaining some hair under your armpit and a small spread of pubes you watch your dick beginning to grow longer as you feel your balls drop. While you can't see your face you notice your body hair darken from light blonde to your original sandy brown. The changes begin to stop as you turn back into yourself until they finish.
You rush into your parent's bathroom and smile seeing your old self reflect back. Suddenly your Dad comes up next to you and for a moment you feel a sense of excitement. The two of you were litterally duplicates, you could just imagine the possibilites that two of you could do now that you were identical but it seemed that it was time for your Dad to change back to normal. You takes off your shoes and give him the magic socks before stepping out of the bathroom. You pick the clothes your Dad had dropped on the floor after stripping and redress.
When you finish you find youself staring back at your Dad- in his original body!
He quickly puts on some clothes before speaking. "Listen, we both know Tim isn't going to want to change back" he says. You nod realizing that Tim was a bit stubborn and no matter how old he looked, he was still mentally a kid meaning he could still be a bit childish. "I have an idea! Tell him that the magic socks come with a rule that if you stay as someone else for more than 24 hours you turn back to normal and you can never use them again" You say. Your Dad decides it's the best course of action and taking the magic socks and the pair of Tims shoes he heads to the basement.
Realizing he left behind Tim's clothing, you follow him and take it to the basement where after a bit of whining, Tim reluctantly agrees to change back. You watch him place your Dad's meaty feet into his old shoes and slowly grow smaller. Tim begins to lose weight and body hair quickly as he regresses back to his original age. Before long, Tim is back to his old self and puts on his old clothes. "I'll be taking those" you say grabbing the magic socks of the floor,
"Hey why do you get to take them?" Tim complains. "Well they're mine and I did buy them" You say. Tim frowns before you Dad begins to reassure him. "Don't worry Tim, we'll have plenty of time to try the socks again.
After all... isn't summer vacation about to begin?" He says. Tim smiles realizing that he would have the whole summer to change into anyone he wanted with the magic socks. "I guess I can wait" he says. The three of you head upstairs where you find your Mom home from work in the kitchen.
A week later summer vacation had began and...