the puberty was stable. >> mcfarland: for eight-year-old brie luciano, the diagnosis of precocious pubertynt that the lucianos needed to make a decision. >> they sat us down and said we could treat her, or we could not. it was totally up to us. if we didn't treat her, he said she'd probably go through puberty, and she'd be short. even though she's growing at a fast rate, he said she wouldn't even reach five foot. we didn't want for her to have to deal with going through puberty. >> answer that question. >> mcfarland: once the weirs had the diagnosis of precocious puberty, rebecca and her younger sister, alicia, were treated right away. >> it was as soon as possible, because rebecca was just-- she was progressing so fast. with alicia, it's not so bad. rebecca's always been older than what the rest of kids have been. so it was a little harder for her. with alicia, it's just--it's an everyday thing. >> mcfarland: davon, brie, rebecca, and alicia got the proper diagnosis. they began treatment right away. it's helped them stave off the onset of puberty so they can experience the rest of their c