Sam Smith and Brandon Flynn have now made their relationship Instagram official after dating for three months. (Photo: Bang ShowBiz)

Sam Smith and Brandon Flynn have been an item for at least three months, but now there’s no second guessing about their relationship. The couple posted a photo on Instagram as a way to signal it’s official.

The duo was first spotted together in October, but just shared a picture of themselves together on Thursday (Dec. 21).

They donned travel pillows with unicorn hats for the photo and Brandon captioned the post: “Rare sighting in London.”

The 24-year-old actor also shared a festive picture of the 25-year-old singer sporting a pair of snowflake paper glasses, accompanied with the sparkling pink heart emoji.

Sam previously admitted he’s pleased to be dating Brandon as he “kind of gets” what it is like to be so famous.

“I didn’t know we were being pictured and it’s such a weird thing to get your head around. But I’m really happy for once. The pictures can rush things but all I know is I’m happy and I’m just trying to see how it goes,” the singer said.

“My job has got in the way of my relationships in the past because it’s just hard to relate to, and people don’t want to be a part of what I’ve got going on in my life,” he added.

Meanwhile, the ‘Stay With Me’ hitmaker previously said he believes it’s “important” to be a “selfish lover” sometimes.

While he prefers to spend time making love, Sam also admits he needs to do whatever it takes to satisfy his own sexual needs.

“You have to be selfish every now and then, right?” Sam said “You have to be sometimes.”