Ashtin Earle has a mega-famous sister in Alix Earle … but she’s been holding her own just fine … and now we’re giving her flowers for her big birthday!

The newly-minted 23-year-old is no stranger to turning heads … our gallery shows her rocking tiny bikinis and lacy looks, serving up pose after pose that leave very little to the imagination.

Feeling competitive? We’ve even thrown in a little spot-the-difference style puzzle featuring Ashtin and Alix — go on, give it a shot.

Then circle back and check out the full gallery!