Vera x Fiona
Favourite ship! They are T4T. Vera is a lesbian and Fiona is bi with a preference for women.
They would meet at fancy dinner parties or at high-profile meetups for "business reasons." They would both excuse themselves to do... other things, or to be affectionate.
Once they would get together, Vera would show off Fiona.
I think that Vera would be the overly possessive of Fiona. Fiona herself would be very much into PDA and embarrass Vera by holding her hand, kissing her cheek, holding her waist in public, etc etc etc. Vera is the overly affectionate type and is also easily embarrassed. She could imagine herself being the one to initate affection onto Fiona and when she goes to try, Fiona already has a suspicion that she'll do something like sneak up and hug her from behind. She lets Vera make her attempt and gives her the usual morning greeting and Vera just MELTS. If she could, she would become a pile of slime on the floor.
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Vera x Fiona x Patricia
Fiona and Vera are married. Fiona, in this ship, is also poly! Vera is okay with Fiona being poly. She would ask Vera permission and let her know about her feelings for Patty and wanting to be with them both. Vera would be a bit jealous but allow her just to test how the relationship would go. Fiona gives both women an equal amount of love and attention, and Vera even finds herself beginning to love Patty, too! They would bathe/shower together and cuddle in a big bed at night. Sometimes Patty takes all of the blankets, leaving Fiona and Vera a bit cold, so they have to buy extra blankets so Patty doesn't take them in her sleep.
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Vera x Demi
I feel like Demi would sell some more costly alcoholic drinks at her bar and Vera would go there occasionally to drink when she hasn't had anything scheduled for her day. Demi eventually grows worried for Vera and for both her physical and mental wellbeing, seeing as she has a serious drinking problem and trying to forget her past traumas. They grow closer the more that Vera visits the bar, becoming an extremely frequent regular, and Demi offers to give her a "new" drink in the back. Instead, she sits Vera down and explains to her how unhealthy it is that she's basically ruining herself with her addiction. Vera is already aware of this, seeing as she's an alcoholic, but keeps Demi's concern in mind when she returns home. As hard as it is, Vera does slowly try to get better and steer away from alcohol. She talks to Demi about her attempt at recovery as she visits the bar less often, so much so that Demi partially believes that Vera is undulging in her addiction at home. She visits Vera to check up on her and how she's doing, as well as telling her that she's proud that Vera is even trying to get better.
They end up dating after a while during Vera's recovery and Demi also does her best to make sure Vera doesn't relapse. Although you shouldn't focus on trying to fix someone while you're in a relationship with them, Demi cares greatly about Vera and wants her to be both happy and healthy.
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Going to update this as I go, but if you have any Vera ships you enjoy, feel free to drop them and I'll write headcanons for the ship that I have!