After much deliberation, the two of you settle on waiting for their brother, to explain what's happening, but still trying to go get some clothes later, your parental figure? figures? entity? seemed detained talking in harmonising voices in the kitchen about the concept of self, seemingly trying to understand who they were.
You look over at your brother, who has also taken to watching them. "you think they're going to be alright?"
"im not sure dom, but i mean, are we? we need to tal-"
"we should be. we might share some organs but if this is everywhere, and looking at, well, *them* we lucked out."
"that's not really what i meant..." you trail off, interrupted by a ring at the door. You are pushed backwards and have to brace from falling, you glance up, doms even closer than normal, you can feel his breath for a second, then you see it click with him that you're there, even when he's looking over your shoulders. he makes a sheepish apology, and you begin walking sideways again, this time to the front door, opening it up, you're given the biggest shock yet, it's your 17 year old brother standing there, yes, but in a much more invasive combination than you were... your brother is on a pair of much wider shoulders than before, and a second head is next to his, his best friend nathan seems to have become a part of him, they're wearing nothing but a backpack, merged undies not unlike those you had, saving what you can only assume is two different modesties, by the fact that their body has three legs, and they have a scouts shirt draped over their shoulders, clearly unable to fit not just because of their wide body, but because you could see over their shoulders another pair of arms, it seemed as if the two were simply close with arms over each other. You're shaken, and you feel a second gasp in your chest as your bodymate takes this all in too.
"i told you they'd understand" states Nathan proudly, continuing a conversation that he and your little brother Luke must've been happening
"we dont know that..."
"i mean either they got hit too, or your brothers have run out of laundry dude..."
"truee, so which is it?" Luke says, this time directing it at you.
Dom pulls up a bit of the tank top you share, showing them your shared navel and chest join, you feel exposed for a moment, but then realise they're the ones who must've had the craziest final day of camp ever, and had to walk down the road from the drop off point in nearly nothing. "welcome back Luke... and i guess welcome to the family Nathan..." you say, realising that someone was going to have to tell nathans family, if they hadnt already found out. you see nathan scratch a bit of his fuzzy facial hair with his shoulder arm, confirming your theory of how their body might work, and you shuffle to the side with Dom to let them in, you could tell that since seeing you, their left side - nathan's side's underwear situation had become much more strained, but you ignored it, instead leaving them to go upstairs and shower, after all, despite their new body seemingly having increased in muscle mass and such, it had also retained all the mess and mud acquired on camp all the same, so while you explained that to your still confused parent, who said they'd tell nathan's family, you could hear a collegtion of arguments in the hall over who was responsible for the middle leg, and it seemed the logistics of stairs.