As you both sit wondering what to do next, you think back to the night before and your time as both your brother and father, as you remember how you put a single shoe of one of your pairs on each body to return to normal you get an insane idea.
"So I have a new idea that's crazy and insane and potentially amazing"
"What is it?" Jack responds
First you tell him about your experience yesterday so that he understands how the socks will work before explaining your plan:
"We're gonna put a single shoe and sock from a pair on one of your feet and one on mine"
His eyes widen with excitement as he realizes what will happen.
"The only question is who's shoes are we going to use?"
"I think I have an idea" Jack replies
A few minutes later Zach has pulled a size 13 shoe out of his duffle bag
"These are my football coach, Coach Harrison's, shoes, there was a mixup the other day and somehow I ended up with his shoes, I figured I'd give them a spin before I returned them."
You both slide on the socks and grab a shoe, placing them on one of your feet.
Suddenly it feel as if your magnetically attracted to eachother, and you find your bodies fusing together into a new single form, you run to the mirror to watch the changes occur, your body shoots up to about six and a half feet as your turns platinum blonde and straight, your face becoming incredibly angular and handsome as your chin grows a cleft in it. Your body grows athletic and fit, packing a a large amount of muscle as your gravity shifts towards your chest,
where you find massive pecks growing.
As the changes finish, you find yourself staring into the mirror at a large and handsome man in his 30's.
"Holy shit" you say, it appears that similarly to how the socks allowed to you to be two people, they also allow you and Jack to act as a single person.
Like you did earlier, you decide to sink into Harrison's persona, you feel his thoughts, memories, and feelings become a part of you. With your newfound body you decide to mess around a bit.
Using some of your money you decided to go see a football game, it was Harrison's favorite team in town so you were especially happy to go.
When you finally came home you decided it was time to end it. And go back to normal. Pretty soon you and Jack were staring at eachother in your own bodies as you figured out what else you could during this weekend alone.