Adrenarche is what you are talking about, the adrenal gland kicks in a little earlier than normal giving us some expression of normal but annoying male hormones causing body odor, pubertal
hair growth
and some advancement of bone maturity, however, obesity itself can advance the bones as well and I would seriously look at the weight to be sure that the weight is controlled well, rapid weight gain and increased insulin production can also stimulate bone maturation and also adrenarche is influenc