Yes

"O-okay"

Kara looks shocked

"Really"

"Yeah, I'm tired of failing as a guy."

Kara grabs your balls, and kisses you. You feel a rush of energy, as something fundamental changes about you.

Your dick softens. Your balls have shrivelled away completely.

Kara smiles

"I just finished the process of changing your mana core completely. Your masculinity is completely gone. Also, your beastfolk transformation is complete"

You realise you have pink hair and fox ears like kara, as well as a long pink tail.

"You're much prettier like this sis!"

You walk uneasily to a mirror to see how you've changed.

You're much shorter, all your body hair has disappeared, your muscle tone is replaced by soft curves, you have small puffy breasts and you're ass is bigger than Kara's. Your tiny clitty flops uselessly against your thicc thighs.

"Call me Fiona"

So, who do you want to fuck first