Moana

Their baby girl was still asleep on her back. Her mouth was open as she snored silently, a strand of hair clinging to the side of her face in a manner that reminded her of Anna. She had black hair and a darker shade of skin that reflected her Polynesian genetics. Around her waist sat what looked like a baby-diaper, an adult-sized product Anna had found and purchased on a website for their baby to be used. She had no shirt on, her breasts out in the open. Elsa and Anna had long-since gotten used to their baby-girl preferring just her diaper, knowing fully well that babies didn't care about modesty.

Elsa reached down and shook the "baby's" shoulder.

"Hey. It's time to wake up."

The girl's breath hitched as her gave a light cough. She rubbed her eyes and bent her legs. Else knew that since she was sleeping the way she did, she would wake up with a dry throat.

The girl stretched her arms over her head before relaxing, her eyes barely opening. She pushed herself up into a sitting position.

"Hello momma," said the girl.

"Hello baby," said Elsa. "You want your baba?"

Moana bit her lip a little.

"Y-Yeah." Her voice was dry, both from having just woken up and being legitimately thirsty.

Elsa patted her lap. The girl knew what this meant and crawled onto her lap, trying to get comfortable before Elsa put the rubber nipple of the bottle into her mouth as she started sucking.

Moana was from a small village in a remote, off-the-map island South of the Samoan Islands called Motonui. She moved to Arendelle out of a desire for wanderlust, intent of spending a little time away from her family (especially after her grandmother died) and to earn her degree in Nautical Science. She always wanted to travel, but her father was deftly afraid of the water after his friend died before she was born.

Halfway through the bottle, Moana paused with a look in her eyes that Elsa would describe as either **** or ashamed before she continued with her bottle. Elsa heard a hiss and knew that Moana was peeing, the college girl not allowed to use the potty as long as she was their baby. When she was done with the bottle, Moana buried her head in Elsa's shoulder as Elsa patted her back (as was customary for any parent who had bottle fed their baby). She could feel a warmth between the protective outer barrier of her baby's diaper and her shirt and was happy that their baby was comfortable with her there not to hold it in.

"Mommy's still asleep, so let's get you change so we can have breakfast."

When they started the "arrangement", both Elsa and Moana had some concerns (though not enough not to do it), but now she was happy that they did this.

She liked being a "Momma" and she couldn't have asked for a cuter baby.