do you think katsuki’s hands are sensitive bc no matter how fire-retardant his quirk makes his palms they’re still human skin. and constantly subject to intense heat
so maybe katsuki is shivering as much from touching izuku as izuku is from being touched by katsuki. like even a palm flat on izuku’s bare waist has them both in shambles — because they’re whipped and because katsuki’s hands feel like they’re on fire… to both of them
see because you’d think they’d be calloused right? from working out and all. but his mom’s side of his quirk is glycerin and the inherent constant moisturizing heals his skin barrier hella fast and thus. no thickening of rough skin..
not saying his hands aren’t rough because rough hands can be sensitive too. in fact sometimes they’re even more so, especially to gentleness in juxtaposition.
which is why izuku’s soft skin is katsuki’s undoing.
and katsuki’s hot palms are izuku’s. so when they’re together and exploring they’re both a shaking mess because wow the love of their life is touching them but also WOW they are so sensitive to it
just imagine izuku’s gentle hands on katsuki’s scars, a touch he now has a pavlovian response to, since izuku’s hands trailing over his are enough for katsuki to fall apart.
and (thanks min) imagine katsuki’s heated, cautious fingers tracing izuku’s sensitive scars, the contact electrifying for them both.
maybe katsuki can’t get enough of the feeling of izuku’s soft skin, and his bumpy skin, under his hands — it’s soothing, like an itch being scratched, like a buzz settling. (obviously izuku can’t get enough either, of kacchan’s burning palms on his bare skin, heating him to the bone.)
just thinking about katsuki’s hot hand palming izuku’s bare side and dragging up and they’re both trembling from it… izuku from the heat settling into his very cells and katsuki from the feel of izuku on his sensitive skin… and they’re both in awe of it, the rawness, how grounding and real and wonderous it feels all at once.
when katsuki massages izuku’s aching joints it does something to him, too, the feel of scar tissue under the pads of his fingers. sometimes it’s after training, so katsuki can almost feel the very ridges of his own fingerprints from sensitivity, and so izuku’s knobby fingers, bumpy scars, the spaces of babysoft in between — he can feel it all press into the valleys in between the whorls on the pads of his fingers, as if the ridges were mountains, or peaks stamping into the earth of izuku’s skin.
it’s a relief, to press his hands into izuku, as much as it is a relief for izuku’s aching form to be pressed into. for katsuki after too much explosion, it feels like hushing an overactive pain; for izuku after training or the cold, it feels like drawing out a smothered voice.
