Def’s got her right arm bandaged pretty much constantly right now as she tries to get used to having all new scars for people to stare at. She doesn’t really remember what it felt like to look in the mirror and see undamaged skin, anymore.
Okay, so like, all might's true form is a lot thinner than his hero one, and we've seen that his clothes don't exactly fit. So what if he has a bunch of sweaters that are like that? Big, baggy and most of all warm as heck sweaters. So now imagine, he and Inko are cuddling and it's pretty chilly. She burrows into the sweater and gets lost in the folds and it turns into a warm cuddle pile for the two of them. Or: the sweater is big enough for both of them to fit inside.