Jackson Rathbone, new dad. (Jason Merritt/Getty Images)

Rathbone, 27, announced Thursday night on Twitter that he and girlfriend Sheila Hafsadi have welcomed a son into the world. The boy has been named after his father, and therefore bears the distinguished moniker Monroe Jackson Rathbone VI. Surely with that kind of name, he’s currently bathing in a Swarovski crystal tub, or at least sucking on a golden paci that attaches to his onesie via gossamer wings.

According to Us Weekly, the non-vampire child was born Thursday morning and weighed in at 8 pounds, 11 ounces. It’s the first child for Rathbone and Hafsadi, a 24-year-old burlesque dancer who Rathbone reportedly met while on tour with his band, 100 Monkeys. (Suggested new name for band, in light of baby’s arrival: 100 Little Monkeys Jumping on the Bed.)

We know the child is still quite young. But here’s hoping that very soon, he’ll start making facial expressions like the one his dad sports in this photo.

Jackson Rathbone, left. (Kevin Winter/Getty Images)

It appears Rathbone will only have a few days to relax with his little one before getting back on the promotional circuit. He and his fellow “Twilight” stars are slated to appear at Comic-Con July 12 to participate in a “Breaking Dawn Part 2” panel.