After spending Christmas in Hawaii, the couple celebrated Manganiello’s turning 38 with an oceanside treat.
“Hawaiian bday!!” Vergara, 42, captioned an Instagram of their festivities, complete with cake, coffee and black and gold balloons.
The Modern Family star also used social media to send her hunky boyfriend a heartfelt message.
“Happy happy bday to my love and best friend,” she captioned a photo of the couple smiling and hugging, “to the one that makes me laugh like crazy! have a wonderful year babe!!!”
This isn’t the first enviable vacation they’ve captured on Instagram: In September, the celebs also documented a Labor Day weekend trip to Mexico.