Yup, she's still got it.
Jennifer Lopez, husband Marc Anthony and their 2-year-olds Max and Emme took a dip in Los Cabos, Mexico on Friday, and RadarOnline.com has all the pictures for you.
The multi-talented entertainer showed off the derriere that was the toast of Hollywood long before Kim Kardashian was a household name.
The Wedding Planner star, who celebrated her 41st birthday Saturday, wore a black bikini as she waded through the water and enjoyed the summer day with her family. She's been married to Anthony since 2004.
Happy belated birthday, J.Lo!