The \"Justice League\" actor, 47, and de Armas -- who co-starred in the upcoming film \"Deep Water\" -- are seen looking cozy and smiling at the camera in one shot while another shows them romantically staring off into the sunset, their arms wrapped around each other.

In another post, this time a video, de Armas can be seen repeatedly hitting a piñata while Affleck cheers her on in the background.

\"Más más más!!!\" she captioned the clip.

View this post on Instagram

Más más más !!! 🍬💖🍭🎉

A post shared by A N A D E A R M A S (@ana_d_armas) on May 1, 2020 at 12:00am PDT

Fans have been speculating about Affleck and de Armas for weeks, with the two having gone on a vacation to Cuba in early March and seemingly quarantining together since their return.

Paparazzi have caught them out and about together numerous times, often displaying PDA, and these birthday posts seem to indicate their relationship can now be deemed Instagram official.

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