Paris Hilton's parents Kathy and Rick Hilton are feeling over the moon after the star revealed that she and husband Carter Reum welcomed a baby boy via surrogate.The socialite, 41, made the surprise announcement earlier this week by sharing a snap of herself holding hands with the newborn.Kathy and Rick, aged 63 and 67, respectively, issued a statement to PEOPLE expressing their happiness over the arrival of their grandson. Happy grandparents: Paris Hilton's parents Kathy and Rick Hilton are feeling 'over the moon' after the star revealed that she and husband Carter Reum welcomed a baby boy via surrogate; the couple seen in 2022'Paris and Carter, we know you are going to be the most amazing parents,' the longtime couple began. 'We are so thrilled for you both! Thank you for this perfect addition to our ever-growing, beautiful family.' Paris and Carter initially met through mutual friends and remained in contact for over a decade before kicking off their romance in 2019.The two were spotted locking lips the following year, and they went Instagram official that April.