Despite only having her first child with John Stamos in April [1], Caitlin McHugh is eager to give her 1-month-old son, Billy, [2] a sibling as soon as she can. And according to the new mom, she wants to have a second child for good reason: baby Billy is already getting completely spoiled.

"Right now, Billy is extremely spoiled and we need to share the love, he's gotta share some of those toys and all the things that have been given to him," explained Caitlin in an interview with Entertainment Tonight. "He needs [siblings] to keep him grounded [3]. If he's the only one, he'll get way too much love because there hasn't been a child on either side of our family in quite some time."

As for divvying up the parenting duties, Caitlin admits that John wasn't exactly chomping at the bit to help her in the diaper department before Billy was born. But apparently, that's all changed.

"He used to say he's not going to change any diapers . . . and he's changed so many diapers! He totally doesn't mind it. It's beautiful seeing [John] with Billy. It all feels so right," explained Caitlin, adding that: "It feels like this is the way it should've always been. He comes so naturally to fatherhood, and I love watching it. I stare at the both of them all the time. [John is] 100 percent full-on active and fantastic. . . . He's perfect, he's a perfect father. I can't wait to give him more [kids]."

For these new parents, every milestone — including a little gas here or there — is something to celebrate. And although Caitlin envisions another baby in her future, Billy has his parents' full attention for the time being.

"It's adorable. Even all the gas and stuff, everything he does is exciting. It's like, 'Oh yes, you pooped! That's great! You farted, that's great! You burped, right in my ear! You spit up in my face and I couldn't be happier," she joked. "There's a lot of positive reinforcement in our house for literally everything."