Frank watching autistic!reader tap their fingers together, memorizing the little patterns he does and noticing how the pace changes depending on his mood. fast when stressed, slower when just a little uncomfortable.
Frank smiling as autistic!reader crawls on top of him on the couch or bed and just starts stimming with his body. gently squishing his rough palms between their hands, pressing their cheek against his, and lightly headbutting his shoulder like a cat.
Frank listening to his boyfriend vocal stim and just playing along even when he doesn't get any references or slang terms, just a curl at the edge of his lips and a little encouragement. “That right sweetheart?”
Frank who sometimes makes a sound back, like a little grunt, and that spurs a little back-and-forth where they just mimic each other before it devolves into laughter.
Frank who just loves to observe his autistic boyfriend and learn all his behaviors with a smile in his eyes, something that might've been misread as judgement until Frank noticed him stop stimming and calmly said “It's okay, don't stop just ‘cause I’m watching. If you want to do it, then do it.”
Frank who will encourage his boyfriend to stim in public and hover closely just so he can scare off anyone who dares look at his boy wrong.
Frank who stays as close as his boyfriend wants, knowing when to give physical space even when he just wants to hold him tight. but he's always just a few strides away and makes sure his boy doesn't feel lonely.
kay but i head cannon the little vocal stims back and forth, like omfg stop
