okay but modern AU where Shiro’s poor therapist (Ulaz) is actually very open to things like the potential benefits of light, recreational use of marijuana, to the point that he eventually recommends Shiro try smoking a couple times a month (maybe once or twice a week, at most) to try and ease his perpetual anxiety and stress about everything
and yeah, friends and housemates Allura, Hunk, Keith, Lance, Matt, Ryou(/Kuron-inspired twin who we’re calling Ryou after GoLion!Shiro’s brother), and Pidge have to sort of nudge Shiro into even trying it instead of dismissing the entire idea as totally pointless, and someone generally has to sit with him or he might not actually smoke like he’s supposed to? but they can take turns and he does eventually listen, and it gets to the point where having people to smoke with is a, ”personal preference because Shiro loves being around people” thing, not a, “Shiro won’t do it without someone watching him” thing
either way, this does end up having a positive effect on Shiro’s mood and well-being, and stoned!Shiro is seriously the cutest shit that everyone has ever seen
for starters, stoned!Shiro is much more relaxed about his sense of humor, which everybody already knows is Questionable but he usually keeps buttoned up…… until he’s high and then he’s happily making jokes so bad that Lance cringed at them, and laughing as much as he wants at Lance’s bad jokes, which is a lot of laughing, and it’s all real, full-bodied laughs, too, not that restrained little chuckle that Shiro usually does unless you catch him way, way off his guard with something really funny
for another thing, stoned!Shiro is an incredibly affectionate little lovebug (as much as you can call him, “little” when he’s 6’3” and pretty buff). he hugs people all the time and loves to snuggle up to whoever’s closest and/or most willing, then showers them in compliments and tells them how much he loves and appreciates them. I’m not saying that Lance becomes his most frequent smoking buddy once he realizes that sharing a joint makes his Shirito want to cuddle and give pep talks that are less, “I believe in you, you can do anything you set your mind to” and more, “you’re good enough exactly as you are”…… but I’m certainly implying it loudly. stoned!Shiro also loves kissing more than sober!Shiro, and he’s so glad that he has a circle of datemates and/or close friends who are often game to make out with him
one time, Pidge and Allura walk in on stoned!Shiro hugging pit-mix shelter rescue!Rover and telling her that she is such a Good Dog, she is the Best Dog, and he’s so happy that she’s safe and loved with them. another time, Hunk walks in on Keith sitting on the couch, with Shiro sleeping while snuggled up to Keith’s lap and stomach, and Keith is crying because he’s known Shiro longer than anybody else but Ryou (since the two of them are twins) and Keith legit cannot remember the last time when Shiro was ever this relaxed or happy
probably the most noticeable difference, though, is that, even when he doesn’t exactly have the munchies, stoned!Shiro actually admits to being hungry and doesn’t give a fuck about his usual low-carb, lean-protein, calorie-counting diet. Also, his idea of a good workout is running around the park for fun or playing Dance Dance Revolution, not, “busting ass at the gym until he is in literal pain and: Allura, Keith, and/or Ryou have to go be Disappointed in him for pushing himself nearly to the point of passing out; Hunk gets sent in because he can do a good Stern face and physically, he has the easiest time of manhandling Shiro; and/or Lance, Pidge, or Matt pull out the sad puppy eyes and wibble about how Shiro’s making everybody worry about him until he feels guilty and stops for the day.” but it’s still the food thing that everybody notices first
stoned!Shiro lets his sweet tooth out, when it’s usually buried unless it’s a cheat day, and even on his cheat days, he doesn’t really indulge. the first time that he smokes up, he actually asks Keith and Allura if they can get pizza or ice cream, maybe, and looks like he could kiss both of them when they go, “Well, why not both.” he might need a moment to puzzle out what he wants because, sadly, he has gotten very good at ignoring or willfully misinterpreting his body’s signals, but he still openly says that he’s craving things that he often doesn’t let himself enjoy or wouldn’t think of (“can we get some nachos and cover them in udon noodles” “Shiro, why” “I don’t know, I just really want both of those things, then some Ben and Jerry’s, pleeeeeease just drown me in Phish Food and Chunky Monkey”)
sure, he’s only smoking up a couple times a month, but all of this does result in Shiro learning that the world isn’t going to end if he eases up on his diet a little. Which is a bit of a work-in-progress for him when he’s sober — but after a few months, Shiro’s getting a little bit chubby. not by too much yet, but he’s losing his thigh gap and gaining starter love-handles, his chest isn’t looking quite so ripped, and there’s more of that beautiful ass to grab when you’re making out with him. then there’s the pudgy tum that’s increasingly stretching out his shirts
to everyone’s surprise, though? Shiro doesn’t even mind. Actually, he kinda likes this