Dragon Age 2 reacts to Hawke's mabari having puppies and they offer to give one puppy to each of them.
Canonically, mabaris choose their people rather than being chosen. I’ve written this using that lore.
Carver: Yes. He’ll take it. He’ll act like it’s a burden at first for spite, but he won’t be able to keep up the ruse. He loves that dog and that dog loves him and he’s never felt more Fereldan.
Bethany: She isn’t sure the dog will imprint, but it does and she almost cries. She loves her sibling, but she often feels lonely as the only mage in the family since Father died. A dog might be just what she needs.
Aveline: She’s thrilled. It’s a way to feel more connected to Ferelden even though she’s not planning on going back. And she can double team with the dog to whip her guards into shape. Kirkwall ends up treating the dog with the same respect they give to Aveline. She loves it.
Merrill: She really didn’t think the dog would like her. She was sure that it wouldn’t imprint, almost didn’t let Hawke try. But to her surprise the dog takes to her immediately. She starts crying as she holds her new puppy. It licks the tears off her face and barks happily while she laughs.
Anders: At first, he refuses. He likes cats, but dogs aren’t really his favorite animal. If one of the puppies imprints on him anyway, though he doesn’t try for it, he’ll take the dog grudgingly. Yet, after a while together, he grows fairly attached to his mabari. It doesn’t act like most dogs, it’s more reserved, like a cat. He laughs when he realizes that his dog is a cat and decides that he can manage having a dog instead of a cat.
Fenris: He doesn’t have strong feelings one way or the other about dogs, but when one of the new puppies imprints on him he takes a little time to serious consider the pros and cons of dog ownership. In the end, the idea of having an unconditionally loyal companion to watch his back is what decides him. As much as he trusts Hawke, people can change or make mistakes. An imprinted mabari will stay with him for life.
Isabela: Dogs aren’t very common on ships, but she’s been landlocked for years now. And the dog sort of made the decision for her, imprinting after only a few hours. She didn’t mean to let it happen, but it did. And, like Fenris, she likes the idea of an endlessly loyal companion. A dog won’t stab her in the back or try to make her transport slaves. A dog won’t judge her lifestyle, either. Dogs are good.
Varric: That dog is going to be almost as tall as he is. That’s his first thought when Hawke tells him that one of the puppies has imprinted on him. His second thought is that Bianca (both of them) is going to be jealous. Like most of the crazy things that happen to him, he just rolls with it.
Sebastian: He wasn’t expecting one of the new puppies to imprint on him, but when it does he feels rather honored. Mabaris are proud, strong, loyal creatures, and to be chosen by one is a great honor. He’s not Fereldan, but he can still recognize how majestic the dog is. It’s clumsy right now, all paws and a big, curious nose, but it’s a sweet puppy and it’ll be very graceful when it’s grown. It sings the Chant with him, its voice mingling surprisingly well.
(I have imagined Hawke as human on land but transforms into a mermaid when in contact with water etc)
Aveline: Found out on the way to Kirkwall from Gwaren, when Carver and Beth were being extra protective of their sibling. Was shocked and a little bit suspicious, but eventually came to be accepting of it, if not entirely comfortable.
Isabela: Is in love. Asks if there’s some way she can be one too. For about a week Hawke gets Isabela trailing after them waiting to see if they’ll transform. Romanced: Still offers to take them on the ship. Pirates have a mermaid on their ship, right? Loves to steer her ship while Hawke is swimming through the waves.
Fenris: Assumes it is some sort of magic and if Hawke isn’t a mage, he will confront them about hiding their mage abilities. Once he knows, it takes him a while to feel comfortable around Hawke, particularly Hawke near water. He’ll get there though. Romanced: After he knows it’s not really magic, he’ll make an extra effort to ensure Hawke knows he is accepting of them…all parts of them. It takes some work, as the transformation is still very similar to magic, but he’ll accept it as a part of Hawke. He is not amused when Hawke splashes him with water. Not amused at all.
Anders: Probably finds out by accident, but is absolutely fascinated. He loves watching them transform, and likens the talent to shape-shifting mages he’d seen before. Romanced: He is probably told the secret by Hawke, and feels very privileged to be privy to the knowledge. Every night, under cover of darkness, he loves to take Hawke down to the sea and watch them transform.
Merrill: Like Anders, she is fascinated by it. She will trail Hawke around for a while, asking them all manner of questions about their transformation. When Hawke transforms for her, she takes notes and wonders whether it is a magical process, similar to that which certain Dalish Keepers can replicate. She will do a lot of research and present her findings to Hawke, so Hawke can learn about the history and significance of their wonderful gift. Romanced: Merrill takes Hawke to see Keeper Marethari and they spend a long afternoon discussing the possibilities of Hawke’s gift’s origin. Every evening, Hawke likes to take Merrill down to the beach by her house and spend a few hours swimming while Merrill eagerly watches and observes the technique of the transformation. The two work at possibly finding a way for Merrill to transform as well.
Varric: When he’s told, he doesn’t quite believe it. This is something out a story, surely. It’s just too good to be true, right? It’s a bit weird, but Varric gets on board. He loves to watch Hawke swimming in the big open sea- nothing quite beats seeing a mermaid flip their tail in the air. People notice that mermaids start to feature in many of his stories too…
Bethany: She was always a little jealous of her sibling since Hawke’s gift was discovered, but as she grew up, she became more and more understanding. It’s something they can share; they both have something to hide and thus there is a mutual sort of respect, even if their situations aren’t quite the same. Bethany makes many notes of Hawke’s gift, and tries to discover as much about it as possible, so as to not accidentally trigger a transformation in the middle of the city.
Carver: As a boy, Carver was delighted when his sibling was a mermaid. It was something right out of the stories that their parents told them. Like Bethany, he was also a little bit jealous he couldn’t be a mermaid too. As he grew up, he became to realise it wasn’t as much as a gift as he had assumed, and he became fiercely protective of Hawke. Whenever they go out in public, Carver makes a mental list of all the possible triggers for Hawke’s transformation, and makes an effort to keep Hawke away from them. It’s an exhausting job, really, but Hawke appreciates it all the same.
Sebastian: He was a bit suspicious at first, as he remembered the stories of Selkies from Starkhaven, but when he realised that Hawke was first and foremost a human, he became fascinated. He wonders at the origin of the gift, and suggests that perhaps the Selkies of legend share some link with Hawke’s gift. He is very supportive of Hawke, and becomes very adept at distracting on-lookers when Hawke begins to accidentally transform. Romanced: He can’t help but feel like he is wed to a Selkie and jokes about how he fears Hawke will one day leave him for the open sea (something Hawke very firmly denies). Sebastian loves to take Hawke out to a secluded river or beach and swim with them at sunset.