Jennifer Lopez Celebrates Her Birthday in a Sheer Dress with Alex Rodriguez!

Jennifer Lopez and boyfriend Alex Rodriguez are celebrating their upcoming birthdays in Miami!

The retired Yankees player took to Twitter on Saturday night (July 22) to share a pic of himself and his entertainer girlfriend dressed to the nines as they headed to a party.

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Jen looked smoking hot in a sheer mini-dress showing off her killer abs while Alex looked sharp in a blue suit.

Jen will be celebrating her 48th birthday on July 24, while Alex turns 42 on July 27.

See the pic of the stylish couple in the gallery below!

FYI: Alex is wearing a Musika Frère suit.