Siobhan ☆, Helena ☮, Beth ☯ ?
Siobhan ☆ - happy headcanon: as much as she tried, she couldn’t ever get Sarah or Felix to like black tea; however, she was taken quite aback when Kira started asking for cups at age seven. So Siobhan managed to get a hold of some decaf stuff so Kira wouldn’t be bouncing off the walls at 11 PM each night, and they’d sit in the kitchen drinking it (Kira’s with milk and sugar, Siobhan’s totally black) while she helped Kira with her homework.
Helena ☮ - friendship headcanon: I feel like she would develop a weird sort of friendship with Art. She’d just randomly show up at his place having bought a case of donuts (because he’s a cop, but also just because she likes donuts), and he learns bits and pieces of Ukrainian from her as they gradually get used to each other.
Beth ☯ - likes/dislikes headcanon: she likes going for long hikes in the wilderness, and backcountry camping too, but she immensely dislikes cycling because it makes her sore in all the wrong muscle groups. She likes reading sci-fi novels, but she’s very choosy which ones she reads, and the pile of those she tried to read but quit halfway through is much larger than that of those she has finished.