Wrote this fluff out of spite, since the fandom likes to keep reminding me that Gavin will outlive the DAMN crew:
Gavin and Freelancer always knew kids were off the table. No big decision, it just wasn't for them.
But when Huxley and Damien finally get through the adoption process and introduce a shy but sweet little girl to 'Uncle Gavin'...well, Gavin feels that tug at his heart much more than he expected.
When Lasko and Dear bring home baby twins, Uncle Gavin feels that heart-tug again as they learn to walk, and start walking towards him.
His found family is expanding, growing, and he's so honored to be a part of it. He and Freelancer gush and coo over their niblings, and love them more than anything.
The Crew all stay in Dahlia. It's their home, it's their family. As they age, Gavin and the kids all help out in caring for them. One by one, Gavin says goodbye to his original found family. Eventually, he says goodbye to the love of his life.
But he's never alone. Uncle Gavin is always surrounded by his friends' children. And they live on through them.
Huxley and Damien's daughter has drive, ambition, and the kindest heart. Lasko and Dear's twins have soft voices, generous souls, and a surprisingly subtle mischievous streak.
Eventually, these kids all find partners, friends, and families of their own. And every time, he is introduced as 'Uncle Gavin'.
He's a fixture in all their lives throughout the generations. As people come into the fold, they explain to newcomers that Uncle Gavin always has been and always will be there.
And more often than not, he'll catch glimpses of his first family. Someone will have Damien's laugh or Freelancer's wit, Huxley's empathy or Lasko's intuition, or Dear's sense of humor.
He misses his first found family, his partner, and will for as long as he exists. But surrounded by the legacy of the love they all shared, Uncle Gavin knows that they will always be with him.