Things are getting serious!

Jennifer Lopez and Alex Rodriguez’s relationship began just a couple months ago, but that hasn’t stopped them from talking marriage. And, in Hollywood, when a couple is talking marriage, it goes without saying that they’re talking prenups!

The 47-year-old and her 41-year-old beau, “have been talking about a prenuptial agreement,” an insider revealed to In Touch.

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The couple has a lot to protect, no doubt. J.Lo is sitting on about $360 million thanks to her singing and acting career, while the professional athlete has $400 million after spending a decade as shortstop on the New York Yankees.

“Jennifer not only wants to protect her money, she wants to make sure her kids [twins Max and Emme, 9] are taken care of,” the source said.

And the insider said that Alex, who is father to 12-year-old daughter Natasha and eight-year-old daughter Ella, feels the same way.

“Alex is always on top of his finances, so a prenup is very important to him, too,” the source added.

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The A-listers better reach an agreement soon, because according to the insider, Jenny from the Block is ready to tie the knot!

“She really wants to marry Alex by the end of the year,” the source said. “She doesn’t want to wait because she knows he’s her soul mate.”

We’re sure that A-Rod is more than happy about Jen’s hopes for marriage. As In Touch previously reported, the baseballer has been “obsessed” with the “Booty” songstress “for well over a decade” before their relationship blossomed.

“She used to think he was a bit creepy because [Alex] would show up backstage at her Vegas show and stop by the set of Shades of Blue,” added the source. “But she decided to give him a chance. They have this crazy-hot chemistry!”

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And though wedding bells might be on the horizon, don’t expect the mother-of-two to welcome a baby anytime soon. As In Touch previously revealed, her relationship with rapper Drake ended after he expressed a desire for kids.

“She’s done having babies. But Drake’s at a point in his life where he wants it all," the source revealed. "A hot partner and the kids. It's causing problems."

We can’t wait to watch her walk down the aisle!

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