technically yes it would be legal. but we have no idea how someone would develop by taking puberty blockers well into adulthood. it's not a magic stop to the aging process, so she would still get older in appearance, she just wouldn't develop big boobs, big butt, wide hips, and other features of adult women, her height would also probably be stunted. but her face would age, she'd get wrinkles and saggy drier skin eventually.
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