Jak Roberto flexes 8-pack abs at beach trip

Jak Roberto is reminding everyone why he's the Pambansang Abs.

On Instagram, the Kapuso actor shared photos of himself with his shirt off, his eight-pack in full view.

Earlier, Jak said his fit body is still a " work in progress ."

Jak is currently on vacation with girlfriend Barbie Forteza, who also posted pics of their vacation.

In her photos , she looked stunning as ever in her blue patterned bikini.

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