Owen Wilson is adding another baby boy to his brood!
Although Wilson, 44, and his one-time personal trainer are not together, the source adds the two are getting along and plan to celebrate at a baby shower together in December.
After his rep confirmed the pregnancy in October, a source told PEOPLE the parents-to-be were “excited” about the baby on the way.
“They are not living together, but Owen is involved,” the source said. “He comes to doctor appointments and makes sure Caroline is doing well.”
Wilson is already dad to 2½-year-old son Robert Ford with ex-girlfriend Jade Duell.
– Anya Leon