Things are moving fast for Jennifer Lopez and Alex Rodriguez!

Just weeks after going public with their relationship, it looks like J-Rod is already blending their families.

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The couple brought their kids along to the Dominican Republic over Easter weekend — and their daughters Emme, 9, and Natasha, 12, are essentially stepsisters in the making.

“Tashi and lulu,” Jennifer, 47, captioned a photo of the smiling duo on her Instagram page.

Along with attending J.Lo’s first concert ever on the Caribbean island, it looks like the gang also enjoyed your typical Easter activities.

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“Jen and Alex woke up early and had Easter baskets outside lined up on the patio waiting for their kids,” one source told E! News. “They had family and friends over for an egg hunt on the sprawling lawn of the property.”

The source continued, “Their kids have also really bonded and become good friends. A-Rod’s older daughter, Natasha, is like a big sister to J.Lo’s twins.”

For a look back at J.Lo’s dating history, click through the gallery below!