Courtesy Hilary Duff
June 29, 2012 11:15 AM

Hilary Duff‘s son Luca Cruz is becoming quite the celebrity.

Duff has already shared pictures of her little guy looking angry and sleeping, and he never fails to be 100% adorable. In the latest shot, the 3-month-old is simply hamming it up for the cameras while on the beach with his mom.

Duff has been vacationing in Mexico with Luca – and judging by her recent Tweets, has been having a great time.

PHOTO: Hilary Duff Sports a Bikini with Baby Luca

“Ahh all tucked in, baby down :),” she Tweeted late Thursday night. “Such a great trip with my favorite people [Haylie Duff] my mommy and LUCA! Goodnight tweet hearts. My eyes are closing.”

Duff has also been working on her bikini body, saying in April that “there is a little bit of pressure” on her to lose weight.

You May Like