Consider: bi harry, bi ginny, and ace/panro luna in a happy poly relationship
When Ginny was trying out for different quidditch teams (and Harry was deciding between starting auror training and trying out for a few of those teams himself), they stayed with Luna in her Ottery St. Catchpole home. They spent most of their time outside or in Luna’s room. Harry was still understandably awkward around Xenophilius. They spent their nights by candle- and wand-light, laughing about their current attempts at adulting and crying about the memories of what they’d endured. It always ended with Ginny cuddling with Harry (the love of her life) or Ginny cuddling with Luna (her best friend that she’d cuddled with since they were second years).
The night Ginny walks into the bedroom from a particularly grueling tryout match to find Harry and Luna cuddling? There’s surprise, but not upset or anger. And the three of them talk long into the night about their relationships (ship?) and what they want from each other. That night they decide to try a polyamorous relationship. It’s the first time they all sleep in the same bed, linking fingers, arms, legs. None of them say it come morning, but it feels so right. Over the next few years there are only a handful of times that the three don’t end up in the same bed. It’s a little too often that one of them collapses in bed between the others at three in the morning, but it still counts.
They support and fall in love with one another as Harry becomes an auror, Ginny becomes a professional chaser for the Holyhead Harpies, and Luna begins her apprenticeship under a renowned Welsh marine magizoologist. They rent a flat in Cardiff and commute to their respective jobs via Floo Network and apparition, but even with the easy commute it becomes far more common that they must spend their nights apart. It’s hard, but in a way it also brings them closer together.
When Harry can’t come home because of a stakeout of a dark wizard’s home and Luna’s off on a multi-day trek across remote seaside cliffs, Ginny spends her time alone flying over and through the forests and streams of Ottery St. Catchpole and visiting the Burrow. When Harry is forced to take a break has a day off and the others are out, he starts experimenting in the kitchen (the flat’s kitchen but more often Mrs. Weasley’s kitchen). He begins to replace his memories of preparing endless meals for the Dursleys with this new way to de-stress, create, and do something special for the people he loves. He cooks dinner and prepares lunch for Luna and Ginny whenever he can. When Luna is off on a month long expedition, she spends her down time reading muggle fantasy series and writing back to Ginny and Harry about her favorite bits. She always takes along books that were Harry’s childhood favorites.
Every chance all three can be together they take, and they find so much joy and solace in those reunions. And several years in, when Ginny announces she’s pregnant, the three of them are on cloud nine. They spend that night in the same bed for the first time in far too long. They fall asleep whispering their commitment and love to one another, and they wake up in an absolute dream. The sun is pouring in, they are a beautiful tangle of fingers, arms, and legs, and they have a beautiful future ahead of them. They are a family.
