The 30-year-old actress and 39-year-old actor, who have been dating since March, made it Instagram official by sharing their first photo together on the social media site after the event.
“We watched hundreds of animals find loving homes today! Thanks for all you do to help #savethemall @bestfriendsanimalsociety and for inviting us to join you! @msalisonpill @angeliquecabral @thomas_sadoski #adoptdontshop 🐕🐈🐇,” Amanda captioned a collage of the group shot and some pups.
Also pictured: Amanda and her co-star Ed Helms on the set of The Clapper on Monday (June 6) in Los Angeles.