The 49-year-old posted the exact same photo on her account with a string of heart emojis.
The baseball ace proposed during the couple's current romantic beach getaway.
In the past, the couple who have been dating for two years have spoken about having a strong connection and blending their families together as Lopez, shares 10-year-old twins Max and Emme with former husband, Marc Anthony and Rodriguez shares two children 14-year-old Natasha and 10-year-old Ella with his former spouse.
"Kids are so beautiful and open to love and new friends. I was so loving to his kids and he was so loving and accepting of mine, and they embraced each other right away. [It was] 'I get a new bonus brother and sisters to hang out with all the time and it's nice,'" Jennifer recently told PEOPLE magazine.
In that same interview, Alex, 43 added: "Our kids have become best friends and that keeps us both grounded and appreciative. We couldn't have asked for anything better than the four of them getting along as they do."
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