Is second puberty a thing for women in their late 20s?

I’m just recalling a time when body had a massive shift. I became more “womanly” all of a sudden. I’d been super flat-chested and lean but after I hit 26, my hips grew wider and I generally bulked up and grew curves. Especially my boobs! I’d been an mosquito bite AA cup then they suddenly grew into a pair of pointy and puffy-nipped B cups. Still have them now. I think it was partially because my period had finally regularized at around 25, but not sure. Ladies did you experience this too? How did your “second puberty” go?
Is second puberty a thing for women in their late 20s?
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