A/N: This chapter is a re-imagining and adding-on of two of my prior Elsanna headcanons, which I have included here. :D
I'm still convinced Anna would be all over Sven's first calf, but what if, to warp my original headcanons:
'When Sven had his first calf, Anna begged to keep her (like Kristoff does with Sven). Finally, after hours and hours of non-stop wheedling, Elsa gave in when Anna promised that she'd be the one in charge of cleaning up after her before, during, and after she grew up (and she has to stay OUTSIDE, Anna!), and swore that she wouldn't bribe any of the servants to do it for her. Squealing, Anna hugged her, babbling that she wouldn't regret it, and, when Elsa saw how happy Signe made Anna, she didn't.'
and
'More Signe 'verse! Anna and Kristoff like to race each other with Elsa as their (biased) judge, and, as often as she can, Anna takes Elsa out on midnight rides. Anna does find herself talking for Signe because Signe has inherited some of her father's dog-like mannerisms and Anna just can't NOT do it, but Elsa puts up with it because she actually finds it adorable (and loves how Anna looks while riding Signe [even better when she's all dashing in her nicest clothes like a lord and his horse]).'
a bit, it's actually Kristoff and Elsa who plot together to give Anna the reindeer to look after? Like, after the announcement of the pregnancy, Anna begs to be able to take care of the resulting calf, but Elsa adamantly says no, putting her foot down, and even Kristoff's no help for some reason. And no matter what she does to try to sway her sister, it doesn't work, so on the day of the actual birth, Anna's tears are both those of awe and immense disappointment.
But the first time she looks away to stroke the proud new papa and mama's noses, there's a rustle of activity behind her. Turning back around, she sees Elsa and Kristoff standing around the female calf, having sloppily attached a ribbon to her head.
"Surprise!" Elsa exclaims, smiling broadly, Kristoff chiming in with, "I've talked it out with Sven, and as soon as this little girl's old enough, she's all yours."
Anna stares at the two and the little reindeer, not knowing what to say until Sven, bumping Anna's shoulder and smiling at her, nuzzling her cheek with a hot puff of air, makes up her mind for her. "Yes!" she exclaims, squealing, rushing forward to hug both Kristoff and Elsa, then kneeling down to open her hands to the little calf, barely able to hold back her excitement when it wobbles into her embrace.
"Now, you're going to have to be the one to clean up after her, and she stays outside, and you're in charge of making sure she stays clean, and..." Elsa lists off caveats, but Anna's not listening anymore.
"I shall call you Signe," she whispers, kissing the tickly, velvety nose of her new reindeer, "And we are going to have the best time together!"
(Fun fact: Signe means new victory.)
