Lonevamps lonevamps lonevamps...
Ok so. Disclaimer. I don't know how diabetes works fully. But also there's all sorts of supernatural things so. That isn't my biggest worry here.
Owen doesn't put together what's up for a while but I feel like Avid lets Owen feed sometimes because he's the type of freak that is into being bitten. And Owen keeps coming back bc you cannot convince me that he doesn't have a sweet tooth and Avids blood is sweet (because you know damn well he would never manage that shit properly whenever Apo isn't actively forcing him to) and one time he bites and is like. Hm. It's too sweet. That's weird. And so he goes to the one person he knows that might know why.
Legs hears the words "sickly sweet" and "blood" in the same sentence and is like Owen. Go find your blood bag and bring them here. (He does not trust Owen to correctly inject insulin.)
I also think once a vampire knew how, they could smell high & low blood sugar. Owen knows the scents from being around Avid but doesn't know what they mean.
Anyways Owen goes because he wants Legs to like him and is listening to him to achieve that is really nice and takes great care of his blood bag. Totally.
He finds Avid actively ghost hunting and when he taps Avid on the shoulder he jumps so badly that he slams into a wall.
Owen has to try really hard not to laugh.
He doesn't ask for Avid to come with him, he just drags him along and shows up at Legs door. (Normally, he'd go through the window. Unfortunately, Avid cannot turn into a bat.)
Legs sighs when he sees them and invites them in on habit even though he gave Owen a permanent invite.
He gives Avid insulin and a few minutes later he's like wow I feel so much less dizzy and Legs has to take a deep breath because yeah man. Yeah. Owen says Avid smells normal again and Legs very quickly realizes that he needs to explain many things to Owen. And also perhaps let him hang around while he works with patients more often.
Drift and Shelby explain that Owen dragged Avid away to Apo and when Avid comes back he explains it and Apo is just. Ok so you listen to the weird guy that fights me over the doctors that literally already told you that you were diabetic. And Avid. Does not have a defense.
Bonus points of him actually vaguely taking care of himself a little bit because Owen complains about his blood tasting bad otherwise. And Avid. Is not good at resisting a pretty boy.
I also find the idea of "the two guys that might be the actual worst with treating their chronic illnesses actually make each other do BETTER at that" really funny. Legundo thinks they'll make each other worse. They somehow don't... Mostly. Avid dares Owen to eat garlic one time and he does though. Legs looks so disappointed when Avid shows up with a clearly miserable bat in his hands looking like he got caught with his hand in a cookie jar.
Okay! Avid's only JUST getting used to being officially Diabetic instead of prediabetic (which means he had high blood sugar but was under the official threshold) and so he. forgets his insulin pen. he'll check food for the carb content and Shelby goes "I don't know if you need to watch your calories" and he goes "oh I don't!" and then eats more than he injected for because he got hungry enough for seconds and forgot he needed to count that too.
Avid doesn't "let" Owen feed so much as go "h-hey! stop that!" and squirm and wriggle and completely fail to get away when Owen leans in open-mouthed. I feel like the first time was a mistake (Owen was THREATENING to, but Avid's flinch is what actually broke the skin) but Owen is categorically incapable of admitting when he fucks up and EXTRA incapable of apologizing so now he does it on purpose. No neither of them are getting off on this that would be awful they hate each other. This is a power struggle. Ignore that both of them know who's going to win and that Avid keeps coming back.
Owen's experience of human blood is limited to 1) the doctor (alcohol and sadness) and now 2) Avid (jellybeans and bad decisions) and this has somewhat skewed his idea of an appropriate flavour profile for human blood.
The doctor finds out when Owen drinks from him and complains about how bitter his blood is in comparison and the doctor goes "so the other person you've been drinking from tastes Sweet? quick question do they also get tired often? struggle putting on or losing weight? get frequent infections?" and Owen goes "oh of course you care about the bloodbag. his stupid neck wound reeks of infection it's because he's unhygienic and can't change bandages."
Doc: Owen. I need you to bring that person to see me, please. This is not me prioritizing them over you, this is me respecting you and your ability to take care of yourself, which this person clearly lacks.
Owen: and what do I get out of it? why should I care about a human who clearly can't take care of itself?
Doc: please. I will take it as a personal favour. I will owe you, if you bring that person to me. If they have what I think they do, I am genuinely worried for their safety.
Owen: you think I'd just drain them dry? bold of you to assume I have your self-control, doctor
Doc: that is not what I said. okay. crash course time. Diabetes is...
Owen doesn't believe the doc in the moment but he Does sneak up on Avid and "kidnap" him the next time he sees him. Drift hears Avid yelp and then Owen go "I'll return him in one piece, as long as he minds his manners"
Avid was thinking "oh my god oh my god oh my god are we going to have sex" and babbling whatever else came into his head in the desperate hopes he could stop thinking about sex with Owen because Owen TERRIFIES him and annoying the shit out of Owen in the process, and gets physically shoved across the threshold of the clinic by a Very Sulky Owen. Legundo was in the middle of sorting a prescription medication (illegally) and sighs. He doesn't know Avid's name because Owen has exclusively referred to him as "the bloodbag" or "the pest" or sometimes "the pathetic wannabe vampire-hunter."
Avid proceeds to also annoy the shit out of the doctor mostly on purpose but oh, hey, it turns out when he takes insulin he feels way better? What's up with that?
Owen gives him the most disgusted look (this was Avid's actual goal; he is unaware that's his goal) and grabs his wrist to check how his blood tastes now. Avid shrieks and flinches and demands to know what Owen's doing in a shaky voice and blushes when Owen goes "I'm drinking your blood. Idiot."
The doctor watches this happen and goes "ah. I See." and neither Avid nor Owen understand what he means.
After being double-dog-dared to eat garlic Owen is so sick he can't fly in a straight line but he refuses to un-bat because that would be even less dignified. Avid carries him like a baby and Owen bites him four times to express displeasure and drinks blood none of those times because he feels so sick.