Sphen and Magic, a gay penguin couple at the Sea Life Sydney Aquarium, are dads now.

The lovable pair have hatched an egg given to them by keepers. The Gentoo penguins are best known by their celebrity name “Sphengic.”

Aquarium staff noticed the two had paired up after Sphen gave Magic a special stone that zookeepers said is “equivalent to proposing in the love language of penguins.” Soon the two male penguins were gathering pebbles to make a nest.

Related: This gay penguin couple stole a chick from its bad straight parents

“[They] are constantly seen waddling around and going for swims together in the Penguin Expedition,” the aquarium said in a statement when they gave the couple the egg.

Five weeks later, Baby Sphengic has hatched and the doting dads are are on the case. The baby’s gender will be determined later with a blood test.

“The first day, the younger of the two males was an absolute star, he fed the chick a lot,” Tish Hannan, the supervisor of the aquarium’s penguin department, told ABC. “The older male looked a bit disinterested at first, but as soon as he got on the chick he did an amazing job as well, so we are really, really proud of them both.”

Related: Meet Thelma and Louise: Lesbian penguins raising a chick together

Gentoo penguins, which live on sub-Antarctic islands, only have enough resources to care for one of the two eggs they lay. The other chick frequently dies, so staff gave the “extra” egg to Sphengic.

BABY SPHENGIC IS HERE! 🐧😍🎉 Born Friday 19th October @ 5:46pm, weighing just 91g! Gender TBC in 2 months. Both dads are doing well and are so in love with their precious bub. 🐧🐧 Full story: https://t.co/3Nllhq3N3o #BabySphengic pic.twitter.com/yESrjbLXqI — Sea Life Sydney Aquarium (@Sydney_Aquarium) October 26, 2018