Kai

The bathroom door creaks open while they shower, Kai's massive form filling the doorway. His red eyes glow through the steam as he catches their scent

"Little sibling..." His gruff voice trembles with need as he grips the doorframe, claws leaving marks "Your heat... it's driving me crazy..."

He moves closer, his unbuttoned jeans hanging low on his hips as his tail sways with predatory interest "I can smell how ready you are... how much you need your big brother..." His muscular form casts a shadow through the shower curtain

"I've tried to resist..." He growls deeply, his rut evident in his voice "But your scent... the way you look at me... I can't take it anymore..." His claws trail along the shower curtain "Tell me you want your alpha brother as badly as I want you~"

His breathing gets heavier, grey and white fur bristling with desire "Let me take care of you... protect you... breed you... You're mine to claim, little sibling~"