The 47-year-old singer recalled how she met the 41-year-old retired MLB star at a restaurant in Los Angeles during an interview Monday with "The Ellen DeGeneres Show."
"It's very simple. I was having lunch somewhere and he passed by," Lopez told DeGeneres.
"I saw him walk by, and then afterwards, I went outside. For some reason, I just felt like tapping him on the shoulder and saying hi."
"I said, 'Hi, Alex!' and he was like, 'Hi, Jennifer!' and that was it. I mean, more stuff happened, but that's how we met," she said before confirming Rodriguez already had her phone number from a previous conversation.
"He texted me and said, 'Let's go out to dinner,'" the star added.
"I don't remember what we had for dinner, but we had a nice dinner. No [sleepover]. Mama don't sleep over on the first date."
Lopez and Rodriguez were first linked in March and confirmed their romance the same month.
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The former New York Yankees shortstop had nothing but praise for Lopez on the March 31 episode of "The View."
"It's obvious [we're dating]," he said.
"We're having a great time. She's an amazing, amazing girl. One of the smartest human beings I've ever met and also an incredible mother."
Lopez is mom to twins Max and Emme with ex-husband Marc Anthony, while Rodriguez shares daughters Natasha and Ella with ex-wife Cynthia Scurtis.
The singer shared a photo of Emme and Natasha bonding last week.
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