Why not go all out? How great would it be if you could spend some time with your grandchildren. You selected the 73 and entered a 14 instead, thinking that being an age between Ben and David would be best to bond with them both. After hitting the enter button, you soon feel your skin tightening with the wrinkles disappearing. What was just skin on bones became supple flesh and muscle. You also felt yourself shrink in your armchair, which turned into a desk chair. A whole load of changes to reality seemed to cascade through the room.
The bed was replaced with a double bunk bed. The record player made way for a stereo system next to 2 desks littered with school equipment. The wallpaper changed from your bland beige to a colorful blue/green combo. The cactus you kept on the window sill stayed though. Your mom had put it there.
Wait your mom? No, your daughter. You clutch your head as your old memories clash with your old ones. Over a dozen years of memories of your new life assault your brain. It takes a few minutes to sort it all out. Your name was still Reginald, but no one called you that and you were recently on a kick to refer get everyone to call you 'Reg' rather than the more juvenile 'Reggie' you'd been called by your parents since preschool. The name had been a nod to your grandfather, yourself. Well, yourself that died shortly after his wife, your now grandmother, 4 years ago. It's weird to have memories of yourself from the perspective of your own grandson you yourself never had. In some ways you could see the faults and flaws you'd had--especially the way you'd become obstinate and pigheaded with time--this time that wouldn't happen.
There was a double bunk bed, because you shared a room with your brother Ben. That kind of makes sense, because previously Ben and David had shared a room. Now the privilege of a single room goes to the oldest sibling. It's not like you care much, in your new memories there are some fights with Ben, but usually you won out, being two years older and bigger--though that advantage wouldn't last for forever. Even so, the arguments were usually over stupid stuff that you'd both end up laughing about a few hours or a day or so later. In fact, you felt rather protective of Ben and looked out for him whenever possible. The old you is actually quite happy to spend more time with Ben.
You left the room, passed the living room with Ben and David still sitting in front of the TV and went into the bathroom to examine your reflection. What you see in the mirror is basically a spitting image of what the old you had looked like as a pubescent boy. You can't help yourself but smile as you flex and stretch without any aching or pain. It's true what they say, youth is indeed wasted on the young.
Mischievously you take a peek inside your pants. The age takes it's toll in many places, but even in that area everything was back to young. Just a few straggling hairs could be found here and there to show that puberty had or is still happening, but nothing much. You slip your phone out and open the app. From the bathroom you can now see the other side of the living room and the kitchen. You daugh... no it's mom now. Your mom still seems to be preparing dinner in the kitchen.
You could try changing something else about yourself, or someone else... or just leave things the way they are for now.