Rose Wine and Ginger Tiger don’t seem like girls that get along but they oddly do. Rose Wine tends to use her wits a lot (and the fact she got educated by 3 highly skilled family members) and is used to Ginger Tiger’s antics. Ginger Tiger was not amused at being held in place to get fitted for an outfit but she quickly gained respect for the oldest.
Outside of her parents, I imagine that Rose Wine is the one Ginger trusts to tell her about her switch. She wasn't nervous telling her mother or father, but she is nervous to tell her sisters (they all like to joke about how she's the only boy and how they love having only one brother).
"Eldest sister, may I speak with you plainly?" Ginger Tiger stood nervously in the oldest Sapphire daughter's guest room.
Rose Wine looked up from the fabrics Burning Spice gifted her and smiled, "What's up little bro," She knew he didn't like being called little because he'd been taller than her since she was seven and he was six.
Ginger Tiger actually flinched at the affection though.
Rose Wine immediately stood up, "Whoa, hey, is everything alright??"
And to her surprise, Ginger Tiger clenched his fists and scrunched up his nose.
"A-Are you crying??" Rose Wine asked, shocked.
"No!" Ginger snapped, "Wild spices never cry!"
"Then," Rose Wine took his hands and guided him to sit on her bed. He kept his paws tucked up under him, but she could still see he was shaking. "Tell me," She said gently, "I promise, whatever it is, I won't be upset or judge you or whatever it is you may be worrying about —,"
"I am a girl." Ginger Tiger blurted out.
"And I wish to be referred to as a girl." She crossed her arms over her chest.
Rose Wine smiled and took her hands gently, "It is an honor to fight alongside you, my sister." She knew that was how cookies expressed love in the Spicelands.
Ginger Tiger's tail thwapped twice before she pulled Rose Wine into a bone crushing hug.
"Oof!" Rose Wine sputtered for a moment before she relaxed and hugged her back.
For a breath, the two sisters embraced in silence.
Then Rose Wine pulled back with an excited grin, "EEEE!! Does this mean you'll finally let me do a make over for you?!"
Ginger Tiger grimaced, "Oh...uhh..."
"TOO LATE!" She pulled her sister to her feet and over to her dresser where she began to pull out several bolts worth of loose fabric.