The 51-year-old singer was spotted with one of her two children taking a tour at a Santa Monica, CA elementary school over the weekend.
J Lo was one hot mama during the school walkthrough with staff and her teenage son, Max.
The Hustlers actress slipped her famous curves into a pair of skintight jeans that highlighted her perfect derriere.
Pairing the look with a black turtleneck, J Lo wore her long hair back in a sleek ponytail.
Adding inches to her tiny frame, the singer wore a pair of pumps and walked around the school like she owned it.
Santa Monica is just a quick 10-minute car drive from Affleck's mansion in the Pacific Palisades, adding to the speculation that she's getting ready to move her family in with his.
Things are getting serious for the couple, who recently introduced their children.
Ahead of the July 4th weekend, J Lo and Affleck were photographed with her twins and his 9-year-old son, Samuel, at Universal Studios in Los Angeles.
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Days later, the Argo actor jumped to his girlfriend's daughter Emme's rescue when a group of paparazzi got a little too close for comfort.
The innocent shopping trip turned scary when photographers pushed each other to get the perfect shot.
Affleck leaped into action, proving to be a protective stepdad and guided Emme to safety.
J Lo and Affleck have been working hard to blend their families after being linked in April.
In fact, they kicked off their weekend with a family trip to the farmer's market.
Affleck was spotted leading the group, which included J Lo, Max, Emme, and Samuel.
While the three children seem to be getting along just fine, Affleck's daughters have yet to be photographed with J Lo's twins.
Besides Samuel, the actor shares two girls -- Violet, 15, and Seraphina, 12 -- with ex-wife Jen Garner.