Kanim really likes Tony; he looks at her rather like she fell out of the sky into his lap and he's trying to figure out how she could possibly have happened. He really really likes her. He does not want to marry her. This is made extremely clear when Queen Marianne asks how he would feel about being Tony's backup husband possibility in case Bella cannot solve the technical issue, to which question his response is to bolt from the room at top speed shouting "I AM GOING TO GO HELP BELLA WITH THAT SPELL NOW."
(This is, he feels the need to explain to Tony later, no slight against her undoubtedly stellar qualities as a potential spouse. Which he wants Bella to enjoy. Which he will not be partaking of himself even though it is, evidently, not a law of nature that only one person can marry a given other person. Because he does not want to be any sort of royalty and be asked for things even if his only duty would be to impregnate another sort of royalty. He is not even sure he wants non-royal children.)
Bella works on the spell, and Kanim helps. It's mid-Pink when Bella finds her beloved Sherlock and says:
"I think this version will work, even if it would be premature to test it before Umber. Which throws into rather stark relief the fact that if I cast it, eventually we will have a baby princess on our hands, and we have not actually discussed parenting."
"About parenting? If I have a kid with her it'll be later - I guess she'd be awfully involved with ours, though."
"If you have a kid with me, you will be married to Tony by the time the child is old enough to speak. There are going to be three parents in this family if there are any."
She goes looking for Tony.
"Hallo," says Bella. "I have a version of the spell that I think will work and it is therefore time to talk parenting."
"...Crap," says Tony, "yeah, that's a logical conclusion, isn't it."
"Yeah, I wasn't thinking of it before I had the spell worked out either, but now I have it and I'm going to marry Sherlock in Umber and it'll probably work, so, yeah. You wanna come have a sit-down or would another time be better?"
After an awkward silence, Bella starts. "So, we could have this entire conversation about a generic 'the baby', but we could also just name her."
"Yeah, I think - Kanim agrees - that there's no way to produce a boy, under the circumstances. Not without borrowing some other contributor's, erm, material."
"I don't have one in mind, no." Bella taps her chin thoughtfully.
"I like it. Carinna. Princess Carinna," pronounces Bella carefully. "Carinna, don't eat that bug, Carinna, come say hi to Grandma, Carinna, it's time for your piano lesson - yeah, it works."
"All right. So - I don't know, what other problems are there?"