What the fuck is up with Sollux's back

Hello son what are you here for

Oh your back okay let’s get that checked out

Yeah don’t do that you’re gonna give yourself scoliosis if you don’t straighten your back some

What did I ju- Boy. Boy stop glowing like that I’m having a fucking seisure

Son I’m sorry to say this but…

Your spine is permanently in the shape of a candy cane.