The Hottest Picture of Zac Efron and Sami Miró We've Seen Yet

Zac Efron and Sami Miró celebrated National Kissing Day on Instagram last week! The fun UK holiday landed on Friday, and Sami posted a snap of herself making out with Zac to mark the occasion. It's not the first time they've shared sweet couple moments on social media, but it certainly might be the hottest. The duo have been going strong since they first stepped out together around Halloween last year and Sami has even joined Zac on location in Hawaii, where he's been filming Mike and Dave Need Wedding Dates (and looking superhot shirtless on set!).