They went to Paws 4 U Rescue in the sunny Florida city.
Jennifer, 49, and Alex, 43, were seen with their children Max and Emme (from her previous marriage to Marc Anthony) and Ella (from his previous marriage to Cynthia Scurtis).
Alex opted to bundle up while escorting Emme and Ella to their car.
Jennifer's ripped midsection was on display during the family outing.
Perhaps they are looking to expand their family ahead of Jennifer and Alex's eventual wedding? The couple got engaged on March 9 after two years of being together.
What kind of dog do you think Jennifer and Alex will adopt and what will its name be? Sound off in the comments!