Credit: Larry Busacca/Getty Images Photo: Katy Perry and John Mayer Spotted at the Sony Music Entertainment Post-Grammy Reception at The Palm in Los Angeles, California on January 26, 2014

Katy Perry may have taken her brother to the Grammys as her date — and to see her awesome performance of her single, “Dark Horse” — but John Mayer was there at the after party to support her… and hang with her fam!

According to sources that talked to US Weekly, the longtime couple looked mighty cozy at the Universal Music Group after party, and not only was he a perfect gentleman toward Katy, but he also gets along with her parents and bro, who were also in attendance.

“John and Katy were really cute together,” the source said, confirming what we have known in our hearts to be true all along.

John made sure to capture their favorite moments of the night on film, snapping photos of her and the rest of the Perry clan. “John had a personal camera slung around his back and was taking photos of everything and everybody,” the source said. Um, where can we see these pictures?

And since family is so important to Katy, John knows that if he gets in good with Mom and Dad, he’s passed the hardest test.

“John seemed really comfortable with Katy’s parents and her brother too,” the source added. “[He] was really trying to savor every moment of the night with all the photos he took. They’re very sweet together.”

We love that Katy has (so far) been the one to tame John’s wild womanizing ways. Please get married and birth tons of gorgeous babies we can obsess over for years to come.

Source: Us Weekly