Early bloomer
An early bloomer is a teenage girl who’s got a body and attitude way beyond her years. She’s a walking disaster for any adult man who sees her.
My neighbor’s daughter is an early bloomer. She’s 13 and she’s got a boyfriend. It’s embarrassing.
My friend’s sister is an early bloomer. She’s got a body like a porn star. It’s wild.
My teacher called my classmate an early bloomer. She was wearing make-up and a mini skirt. It was weird.